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1. Top results related to shell script in linux

   • Shell Script to Get Date In Linux

     Top Answer

     Answered Jan 21, 2014 · 1 votes

     Try the following:

     input=2013-12-11lastTues=$(date -d "$input -$(date -d "$input +5 days" +%u) days" +%Y-%m-%d)lastFri=$(date -d "$input -$(date -d "$input +2 days" +%u) days" +%Y-%m-%d)-

     This command first works out how many days there are between the input date and last Tuesday (or Friday), call this X. It then runs date -d "inputDate -X days" to calculate the new date.

     Check all answers on Stack Overflow

     1/5

   • Shell Script to Demonstrate Wait Command in Linux

     Wait command is one of the process management commands. There are different process commands in Linux mainly 5 commands are widely used which are ps, wait, sleep, kill, exit.

     ps is an acronym for process status. It displays information about the active processes. wait command will suspend execution of the calling thread until one of its children terminate. It will return the exit status of that command. The sleep command is used to delay the execution of the next command for a given number of seconds, hours, minutes, days. kill is used to terminate a background running process. It sends a terminate signal to the process and then processes halts. It takes process ID as an argument. exit command is used to exit from the current shell environment.

     Let’s take some examples to understand more about wait commands:

     wait is an inbuilt command in the Linux shell. It waits for the process to change its state i.e. it waits for any running process to complete and returns the exit status.

     Syntax:

     wait [ID]

     Here, ID is a PID (Process Identifier) which is unique for each running process....

     Check all answers on Geeksforgeeks

     2/5

   • Shell Script to Demonstrate Wait Command in Linux

     Wait command is one of the process management commands. There are different process commands in Linux mainly 5 commands are widely used which are ps, wait, sleep, kill, exit.

     ps is an acronym for process status. It displays information about the active processes. wait command will suspend execution of the calling thread until one of its children terminate. It will return the exit status of that command. The sleep command is used to delay the execution of the next command for a given number of seconds, hours, minutes, days. kill is used to terminate a background running process. It sends a terminate signal to the process and then processes halts. It takes process ID as an argument. exit command is used to exit from the current shell environment.

     Let’s take some examples to understand more about wait commands:

     wait is an inbuilt command in the Linux shell. It waits for the process to change its state i.e. it waits for any running process to complete and returns the exit status.

     Syntax:

     wait [ID]

     Here, ID is a PID (Process Identifier) which is unique for each running process....

     Check all answers on Geeksforgeeks

     3/5

   • Linux shell script to copy last lines of a file in a directory to append to a file in another directory

     Top Answer

     Answered Oct 10, 2014 · 0 votes

     `"tail -"$Lines1"f /opt/grinder/svn/IAVS/GrinderLogs/GrinderBaseLogs/Lg2Logs/"$GrinderLg2"-"$c"-data.log>>/opt/grinder/svn/IAVS/GrinderLogs/GrinderBaseLogs/"$GrinderLG1"-"$c"-data.log"`-

     change to

     tail -"$Lines1"f /opt/grinder/svn/IAVS/GrinderLogs/GrinderBaseLogs/Lg2Logs/"$GrinderLg2"-"$c"-data.log>>/opt/grinder/svn/IAVS/GrinderLogs/GrinderBaseLogs/"$GrinderLG1"-"$c"-data.log-

     should work.

     In my setup i have tested as below way

     #!/bin/sh`"tail -10f filename"`-

     give error filename not found

     But

     #!/bin/shtail -10f filename-

     This works fine.

     Check all answers on Stack Overflow

     4/5

   • Also try

     how to run shell script in linux	simple shell script in linux
     how to execute shell script in linux	how to write shell script in linux
     how to create shell script in linux	how to open shell script in linux
     sample shell script in linux

     5/5

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2. www.freecodecamp.org › news › shell-scripting-crashShell Scripting for Beginners – How to Write Bash Scripts in ...

   www.freecodecamp.org › news › shell-scripting-crash

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   Mar 31, 2022 · Learn the basics of bash scripting, a powerful tool for automating tasks in Linux. This article covers what is a bash shell, how to create and execute bash scripts, the basic syntax of shell scripting, and how to schedule scripts via cron jobs.

3. Videos

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     Shell Scripting Tutorial | Shell Scripting Crash Course | Linux Certification Training | Edureka

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     Shell Scripting Tutorial | Linux Tutorial | Shell Scripting Training | Intellipaat

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     Shell Scripting Tutorial in Linux

     Feb 11, 2013

     289.4K Views

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4. People also ask

   What is a shell in Linux?

   • A shell is a command line interpreter that accepts and runs commands. If you have ever run any Linux command before, then you have used the shell. When you open a terminal in Linux, you are already running the default shell of your system. Bash is often the default shell in most Linux distributions. This is why bash is often synonymous to shell.

   How to Create and Run Bash Shell Script [Beginner's Guide] - Linux Han…

   linuxhandbook.com/run-shell-script/

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   What is shell scripting in Linux?

   • Shell scripting is an important part of process automation in Linux. Scripting helps you write a sequence of commands in a file and then execute them. This saves you time because you don't have to write certain commands again and again. You can perform daily tasks efficiently and even schedule them for automatic execution.

   Shell Scripting for Beginners – How to Write Bash Scripts in Linux

   www.freecodecamp.org/news/shell-scripting-crash-course-how-to-write-bash-scripts-in-linux/

   See all results for this question

   What is a bash script in Linux?

   • That means that if you regularly use the Linux command line, then Bash scripts are pretty simple. Anything that exists in a Bash script can also be executed in the command line. In this tutorial, we will take you through various examples of Bash scripts to show you what it is capable of, and how to utilize different aspects of Bash.

   Bash Scripting Tutorial - Linux Tutorials - Learn Linux Configuration

   linuxconfig.org/bash-scripting-tutorial

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   How to execute a bash script without a shell script?

   • Another way to execute bash scripts is to call bash interpreter explicitly eg. $ bash date.sh, hence executing the script without the need to make the shell script executable and without declaring shebang directly within a shell script.

   Bash Scripting Tutorial for Beginners - Linux Tutorials - Learn Linux

   linuxconfig.org/bash-scripting-tutorial-for-beginners

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5. www.geeksforgeeks.org › how-to-create-a-shellHow to Create a Shell Script in linux - GeeksforGeeks

   www.geeksforgeeks.org › how-to-create-a-shell

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   Mar 13, 2024 · If you want to run a bunch of commands together, you can do so by creating a shell script. Shell scripts are very useful if you need to do a task routinely, like taking a backup. You can list those commands and execute them all with just a single script. Let’s see how you can create a shell script and run it on Linux.

6. linuxhandbook.com › run-shell-scriptCreate and Run Your First Bash Shell Script - Linux Handbook

   linuxhandbook.com › run-shell-script

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   Learn how to create a simple bash script, run it, and add it to the PATH variable. This tutorial covers the basics of shell scripting, the shebang line, and the echo command.

7. www.geeksforgeeks.org › introduction-linux-shellIntroduction to Linux Shell and Shell Scripting - GeeksforGeeks

   www.geeksforgeeks.org › introduction-linux-shell

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   Apr 16, 2024 · Complete Linux system = Kernel + GNU system utilities and libraries + other management scripts + installation scripts. What is Shell? A shell is a special user program that provides an interface for the user to use operating system services.

8. linuxconfig.org › bash-scripting-tutorialBash Scripting Tutorial - Linux Tutorials - Learn Linux ...

   linuxconfig.org › bash-scripting-tutorial

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   Dec 7, 2023 · This tutorial will show the basics of Bash scripting through examples, allowing beginners to master the concepts of the Bash shell on Linux.

   • Software: Bash shell (installed by default)

   • System: Linux system

9. www.shellscript.shThe Shell Scripting Tutorial - The Shell Scripting Tutorial

   www.shellscript.sh

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   Shell Scripting: Expert Recipes for Linux, Bash and more is my 564-page book on Shell Scripting. The first half covers all of the features of the shell in every detail; the second half has real-world shell scripts, organised by topic, along with detailed discussion of each script.

10. www.freecodecamp.org › news › bash-scriptingBash Scripting Tutorial – Linux Shell Script and Command Line ...

    www.freecodecamp.org › news › bash-scripting

    • Cached

    Mar 20, 2023 · Learn how to create and execute bash scripts in Linux, a powerful tool for automating system administration tasks. This tutorial covers variables, commands, inputs/outputs, conditional statements, looping, branching, scheduling, debugging, and more.