Introduction
In the ever-evolving world of software development, Quality Assurance (QA) plays a crucial role in ensuring flawless applications. UNIX/LINUX testing is an essential skill for QA testers working with server-based applications and backend systems. Whether you are an aspiring QA professional or a seasoned tester looking to enhance your skills, H2K Infosys offers comprehensive QA testing classes designed to make you an expert in UNIX/LINUX testing.
In this blog, we’ll explore the importance of UNIX/LINUX testing, its relevance in the QA field, key concepts, and how H2K Infosys’ Software Quality Assurance training can help you master this essential skill.
Why UNIX/LINUX Testing Matters in Quality Assurance?
1. Ubiquity of UNIX/LINUX Systems
Many enterprise applications, banking systems, cloud servers, and databases run on UNIX/LINUX platforms. QA testers working in such environments must understand UNIX commands, shell scripting, and file system management to ensure effective testing.
2. Faster Debugging and Issue Resolution
QA testers with UNIX/LINUX expertise can efficiently identify errors in log files, automate repetitive tasks, and troubleshoot server-related issues.
3. Essential for Automation Testing
Many automation testing tools like Selenium, JMeter, and Appium require UNIX command-line proficiency for script execution and debugging.
4. Supports Backend Testing
QA professionals often validate backend processes such as database queries, batch jobs, and API calls, all of which require UNIX command-line knowledge.
5. Industry Demand
According to research, 70% of organizations prefer QA testers with UNIX/LINUX expertise. Learning UNIX commands can significantly boost your career prospects.
6. Enhanced Security Testing
Security vulnerabilities often emerge in applications running on UNIX/LINUX. QA testers proficient in UNIX can identify and mitigate security risks efficiently.
7. Scalability and Performance Testing
As UNIX-based applications scale, performance testing ensures seamless functionality. QA professionals use UNIX tools to analyze system performance and identify potential bottlenecks.
8. Log Analysis and Monitoring
UNIX provides extensive log management capabilities, enabling testers to analyze logs for debugging, performance monitoring, and security checks.
Core Concepts Covered in H2K Infosys’ UNIX/LINUX Testing Course
H2K Infosys’ Quality Assurance Tester Course covers the following key concepts essential for UNIX/LINUX testing:
1. Introduction to UNIX/LINUX
- What is UNIX/LINUX?
- Differences between UNIX and LINUX
- UNIX Architecture and File System
- UNIX Shell and Terminal Basics
2. Essential UNIX Commands for QA Testers
- File Management:
ls,cd,pwd,mkdir,rm - Process Management:
ps,kill,top,jobs - File Permissions and Ownership:
chmod,chown,chgrp - Searching and Filtering:
grep,find,awk,sed - Archiving and Compression:
tar,zip,unzip
3. Shell Scripting for Automation
- Writing Shell Scripts (
.shfiles) - Conditional Statements and Loops
- Automating Test Cases with Shell Scripts
- Scheduling Jobs with Cron Jobs
4. Log File Analysis and Debugging
- Reading and Analyzing System Logs
- Error Detection Techniques
- Log Parsing with
grepandawk
5. Database Connectivity & SQL Queries
- Connecting UNIX Terminal to Databases
- Executing SQL Queries from Command Line
- Validating Backend Data
6. Hands-on UNIX-based Test Scenarios
- Checking Server Response
- Validating File Uploads & Downloads
- Automating Log File Monitoring
Practical Applications and Real-World Scenarios
1. Automating Repetitive Tasks
QA testers often need to run the same set of test scripts multiple times. By writing shell scripts, they can automate test case execution, saving time and reducing human errors.
2. Validating Backend Processes
For applications relying on batch jobs, UNIX testing helps ensure that data is processed correctly. Testers can use UNIX commands to validate logs and job statuses.
3. Checking Server Performance
QA professionals can use UNIX commands to check system resources, identify Bottlenecks, and ensure smooth application performance.
4. Debugging Test Failures
UNIX allows testers to analyze log files and identify root causes of test failures, ensuring efficient debugging and issue resolution.
Why Choose H2K Infosys for UNIX/LINUX Testing Training?
1. Industry-Expert Instructors
Our trainers are experienced QA professionals with hands-on industry knowledge, ensuring you learn real-world testing scenarios.
2. Hands-on Training Approach
Practical training with real-world examples, live projects, and UNIX-based test cases.
3. Flexible Online Classes
Learn at your own pace with instructor-led interactive sessions.
4. Resume Assistance & Job Support
Get career guidance, resume building, and interview preparation assistance.
5. Certification & Industry Recognition
Earn an industry-recognized certification that validates your UNIX/LINUX testing expertise.
6. Access to Real-Time Projects
Gain hands-on experience by working on real-world UNIX/LINUX-based projects to build industry-relevant skills.
7. Dedicated Career Support
Receive end-to-end career guidance, including job referrals and networking opportunities with industry professionals.
Step-by-Step Guide: Running a UNIX Test Script
1. Create a Shell Script
#!/bin/bash
# Script to check server status
echo "Checking server status..."
ping -c 4 google.com
if [ $? -eq 0 ]; then
echo "Server is reachable. Test Passed."
else
echo "Server is not reachable. Test Failed."
fi2. Save the Script
Save the script as server_test.sh
3. Assign Execution Permissions
chmod +x server_test.sh4. Execute the Script
./server_test.shThis simple test script checks if a server (Google) is reachable, demonstrating real-world test automation using UNIX.
5. Review the Output
The script will display whether the server is reachable or not. If the test fails, investigate network connectivity or firewall settings.
6. Automate Script Execution
To run the script automatically at regular intervals, use cron jobs:
crontab -eAdd the following line to execute every hour:
0 * * * * /path/to/server_test.sh7. Enhance the Script
Modify the script to log test results to a file:
./server_test.sh >> server_test_log.txtThis ensures a history of test results is maintained for analysis.
Key Takeaways
- UNIX/LINUX testing is essential for QA testers working on backend systems and automation.
- Mastering UNIX commands, shell scripting, and log analysis enhances QA efficiency.
- H2K Infosys’ software quality assurance training provides hands-on learning with real-world applications.
- Learn from industry experts and gain a certification to boost your career prospects.
Conclusion
Take your QA skills to the next level with H2K Infosys UNIX/LINUX Testing course. Enroll today to gain hands-on experience and boost your career in software quality assurance!
41 Responses
1. What is the difference between UNIX and Linux operating system?
UNIX is a command line operating system, which features some of the following capabilities: multitasking, portability, and multi-user computing. Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Linux is not a fully developed operating system. Unix and Linux are both command line efficient operating systems that can be used to manage the servers.
2. How is testing done for Unix/Linux operating system?
The square brackets are used to defined the condition for test command.
Unlike Unix, the Linux test command checks the file types and compares all the values.
Unix Operating system is a command line operating system which is multi tasking, portable ,multi user command operating system where as linux operating systems is a continuation of unix operating system . Both are used for server based model. servers are huge storage which ensures high speed, multi tasking,ect.
The master control program of unix is a kernel which has total control over the system where as linux is also a kernel but not a completely developed operating system.
Unlike Unix, the Linux test command checks the file types and compares all the values.
Unix/Linux: Unix/Linux are command line efficient operating systems that can be used to manage the servers.
Difference: UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux: is derived from Unix and is a continuation of unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
Testing on Unix and Linux operating systems is done through commands.
Unix is a command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems.
Linux is basically derived from Unix and is a continuation of Unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.
Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.
What is the difference between UNIX and Linux operating system?
The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.Linux primarily uses Graphical User Interface with an optional Command Line Interface. Unix primarily uses Command Line Interface.Linux OS is portable and can be executed in different Hard Drive. where as, Unix is not portable.Linux is more famous than Unix but Unix has its own users. While Linux is an open source, free to use operating system widely used in Home Based PC, Mobile Phones, Desktops, etc. , Unix is a proprietary operating system commonly used on large server systems, mainframes, expensive and high-end computer systems at big MNCs and institutions.
How testing is done for Unix/Linux operating system?
Testing on Unix/Linux operating system is done through commands.
Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
In manual testing for what purpose we use Linux/Unix ?
Or where we use Unix/Linux ?
he primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.
Let’s talk about Linux OS first.
The source code of Linux is freely available to it’s users. Check it out here.
Linux primarily uses Graphical User Interface with an optional Command Line Interface.
Linux OS is portable and can be executed in different hard drives.
Linux is very flexible and can be installed on most of the home based PCs.
Linux is used on home based PCs, Mobile Phones, Desktops, etc.The square brackets are used to defined the condition for test command.
Unlike Unix, the Linux test command checks the file types and compares all the values.
Different version of Linux are Ubuntu, Linux Mint, RedHat, Solaris, etc.
Linux installation is economical and doesn’t require much specific and high end hardware.
Now comes the UNIX OS.
The source code of Unix is not available for the general public.
Unix primarily uses Command Line Interface.
Unix is not portable.
Unix has a rigid environment of the hardware. Hence, cannot be installed on every other machine.
Unix is mainly used in Server Systems, Mainframes and High End Computers.
Different Versions of Unix are AIS, HP-UX, BSD, Iris, etc.
Unix installation is comparatively costlier as it requires more specific hardware circuitry.
Unix is developed by AT&T Developers.
2. Test is done by using command line in Unix / Linux
Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.
What is the difference between UNIX and Linux operating system?
The main difference between Unix and Linux is that Unix is an operating system that
is most commonly used on the internet, servers, and workstations.
however, on the other hand, Linux is an open-source that is commonly used for the hardware and software of the computers.
How testing is done for the Unix/Linux operating system.
Testing on Unix/Linux operating system is done through the command line.
1.Difference between UNIX and Linux operating system
The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command.
2.Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.
1. What is the difference between UNIX and Linux operating system?
answer:
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time sharing configurations. whereas Linux is just a kernel and not a completely developed operating system.
Unlike Unix, the Linux test command checks the file types and compares all the values.
2. How testing is done for Unix/Linux operating system?
answer:
To test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing.
1) difference between UNIX and Linux operating system
a) linux: open source software development and free operating system , use in p.c, mobile phone, desktop
b) unix: which can be used by its copyright , used in server system and high end computers.
2)how testing done for unix and linux operating system?
Unix/linux are command line efficient operating systems that can be used to manage the servers.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
Linux is a command line operating system which is derived from Unix and is a continuation of unix.
Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.
1.UNIX is a command-line operating system, which features some of the following capabilities: multitasking, portability, and multi-user computing. Linux is a command-line operating system which is derived from Unix and is a continuation of Unix. Linux is not a fully developed operating system. Unix and Linux are both command line efficient operating systems that can be used to manage the servers
2. Testing on UNIX operating is done through the command.
A1. Unix and Linux are both command line operating systems. However, the master control program of Unix is kernel and the kernel has full control over the entire system. Whereas, Linux is derived from Unix and is a continuation of Unix.
A2. Unlike Unix, Linux test command checks the file types and compares all the values.
The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands. … Linux primarily uses Graphical User Interface with an optional Command Line Interface.
Linux refers to the kernel of the GNU/Linux operating system. More generally, it refers to the family of derived distributions.
Unix refers to the original operating system developed by AT&T. More generally, it refers to family of derived operating systems.
1) UNIX AND LINUX a command-line operating system. The master control program of UNIX is the kernel and the kernel has full control over the entire system. LINUX is derived from UNIX and is a continuation of UNIX. Its distribution is very popular and healthiest. LINUX is just a kernel and not a completely developed operating system. Everything in UNIX or Linux is either a file or process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data.
2) The square brackets are used to define the condition for the test command. Unlike Unix, the Linux test command checks the file types and compares all the values. UNIX or Linux is either a file or a process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers.
Unix is an OS where the source code is not available to all where Linux is open source based. Unix and Linux testing are performed using command line arguments and invocation of shell scripts.
What is the difference between UNIX and Linux operating system?
The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.Linux primarily uses Graphical User Interface with an optional Command Line Interface. Unix primarily uses Command Line Interface.Linux OS is portable and can be executed in different Hard Drive. where as, Unix is not portable.Linux is more famous than Unix but Unix has its own users. While Linux is an open source, free to use operating system widely used in Home Based PC, Mobile Phones, Desktops, etc. , Unix is a proprietary operating system commonly used on large server systems, mainframes, expensive and high-end computer systems at big MNCs and institutions.
How testing is done for Unix/Linux operating system?
Testing on Unix/Linux operating system is done through commands.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
Linux is a command line operating system which is derived from Unix and is a continuation of unix,the master control of Unix is kernel and it has full control over the entire system.
What is the difference between UNIX and Linux operating system?
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. Unix/linux are command line efficient operating systems that can be used to manage the servers.Linux is a command line operating system which is derived from Unix and is a continuation of unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
How testing is done for Unix/Linux operating system?
Testing in UNIX is done with the help of commands after having a proper testing script.
What is the difference between UNIX and Linux operating system?
Linux source code is available to the general public whereas, in Unix, the source code is proprietary.
Linux is a Unix clone,behaves like Unix but doesn’t contain its code. Unix contain a completely different coding developed by AT&T Labs. Linux is just the kernel. Unix is a complete package of Operating system.
How testing is done for Unix/Linux operating system.
Unix/Linux are command line efficient operating systems that can be used to manage the servers.
UNIX : The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux: Linux is a command line operating system Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
Linux is a command line operating system which is derived from Unix and is a continuation of Unix. It is assembled under the model of free and open source software.
How testing is done for Unix/Linux operating system?
Example: the test command checks file types and compares values. test is used as part of the conditional execution of shell commands.
Syntax: test expression or [ expression ] {notice the space between and after expression} both the commands produce the same result.
test 100 -gt 50 && echo “True” || echo “False”
This command will print the text “True” because 100 is greater than 50.
Without using test command same thing can be done as below:
[ 100 -gt 50 ] && echo “True” || echo “False”
Will print the text “True” because 100 is greater than 50.
Linux is just a kernel and Unix is a completely developed operating system.
UNIX is a command line operating system which are widely used in servers, workstations and mobile devices.
Linux is a Unix like computer operating system assembled under the model of free and open source software development and distribution.
Testing is done by command line. Everything in UNIX or Linux is either a file or process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.
1.UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
It has characteristics like:
Usage of plain text for data storage
Hierarchical file system
Handling devices and some specific some kinds of inter-process communication
Employing a huge number of software tools
Multiple small, simpler and modular programs which can be threaded together.
LINUX is a command line operating system which is derived from Unix and is a continuation of Unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command
2.Unix/Linux are command line efficient operating systems that can be used to manage the servers & The square brackets are used to defined the condition for test command
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some
time – sharing configurations. Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.
Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.
Linux is a free and open-source operating system. Unix is a commercial product, offered by a variety of vendors each with its own variant, usually dedicated to its own hardware. It’s expensive and closed source. But Linux and Unix do more or less the same thing in the same way.
The square brackets are used to defined the condition for test command.
Unlike Unix, the Linux test command checks the file types and compares all the values.
1. Both UNIX and Linux are command line operating systems however Linux is a derivation and continuation of UNIX. Linux is also free and open source versus UNIX which is commercial. Linux is a kernel derived from UNIX and is not fully developed as of yet.
2. Square brackets are used to defined the condition for test command. Unlike Unix, the Linux test command checks the file types and compares all the values. Everything in UNIX or Linux is either a file or process.
1. What is the difference between UNIX and Linux operating system?
UNIX and Linux are both OS which earlier had only CLI(command line interface) but now also supports GUI. Unix is a commercial product. UNIX, itself is a complete OS as everything (all required application tied together) comes from a single vendor. It’s expensive and closed source.
On the other hand, Linux is a open source command line operating system which is derived from Unix and is a continuation of Unix.
2. How testing is done for Unix/Linux operating system.
The square brackets are used to define the test commands. Everything is either on a file or a process. We can identify the program through a unique code called PID process identifier.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. Linux is a command line operating system which is derived from Unix and is a continuation of unix. Unlike Unix, the Linux test command checks the file types and compares all the values.
1. What is the difference between UNIX and Linux operating system?
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations.
The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Its distribution is very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command
2. How testing is done for Unix/Linux operating system?
To test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, then the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test
Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
1. What is the difference between UNIX and Linux operating system?
Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
It has characteristics like:
Usage of plain text for data storage
Hierarchical file system
Handling devices and some specific some kinds of inter-process communication
Employing a huge number of software tools
Multiple small, simpler and modular programs which can be threaded together.
The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command.
2. How testing is done for Unix/Linux operating system.
For example, to test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test command checks the file types and compares all the values.
1.What is the difference between UNIX and Linux operating system?
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations.
The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Its distribution is very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command
2. How testing is done for Unix/Linux operating system?
To test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, then the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test
1. What is the difference between UNIX and Linux operating systems?
Unix/Linux are command line operating systems used on servers, workstations, and mobile devices. Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
2. How testing is done for Unix/Linux operating system?
Square brackets are used to defined the condition for test command. Unlike Unix, the Linux test command checks the file types and compares all the values. Everything in UNIX or Linux is either a file or process.
1. What is the difference between UNIX and Linux operating systems?
Unix/Linux are command line operating systems used on servers, workstations, and mobile devices. Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
2. How testing is done for Unix/Linux operating system?
Square brackets are used to defined the condition for test command. Unlike Unix, the Linux test command checks the file types and compares all the values.
Difference between Unix and Linux Operating system
1. Unix primarily uses a command line interface
Linux primarily uses a Graphical User interface with an optional command line interface.
2, Unix is not portable
Linux OS is portable and can be executed in different hardware.
3. Unix cannot be installed on every other machine
Linux can be installed on most of the PC, mobile phones, Desktops, etc.
Testing done for UNIX/Linux
The square brackets are used to define the condition for the test command.
If the file is specified by the first positional parameter of the shell procedure the test command displays the message.
Unlike Unix, the Linux test command checks the file types and compares all the values.
UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations.
Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest.
to test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test command checks the file types and compares all the values.