Shell
The term 'shell' refers to a general class of text-based interactive command interpreters most often associated with the Unix & Linux operating systems. For questions about shell scripting, please use a more specific tag such as 'bash', 'powershell' or 'ksh'. Without a specific tag, a portable (POSIX-compliant) solution should be assumed, though using 'posix' in addition or 'sh' instead is preferable.
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How can I declare and use Boolean variables in a shell script?
I tried to declare a Boolean variable in a shell script using the following syntax: variable=$false variable
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YYYY-MM-DD format date in shell script
I tried using $(date) in my bash shell script, however, I want the date in YYYY-MM-DD format. How do I get thi
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How to use SSH to run a local shell script on a remote machine?
I have to run a local shell script (windows/Linux) on a remote machine. I have SSH configured on both machine
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How to specify the private SSH-key to use when executing shell command on Git?
A rather unusual situation perhaps, but I want to specify a private SSH-key to use when executing a shell (git
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How to convert a string to lower case in Bash?
Is there a way in bash to convert a string into a lower case string? For example, if I have: a="Hi all" I
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Difference between sh and bash
When writing shell programs, we often use /bin/sh and /bin/bash. I usually use bash, but I don't know wha
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Check existence of input argument in a Bash shell script
I need to check the existence of an input argument. I have the following script if [ "$1" -gt "-1" ] then e
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How do I prompt for Yes/No/Cancel input in a Linux shell script?
I want to pause input in a shell script, and prompt the user for choices. The standard Yes, No, or Cancel type
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How to exclude a directory in find . command
I'm trying to run a find command for all JavaScript files, but how do I exclude a specific directory? He
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Loop through an array of strings in Bash?
I want to write a script that loops through 15 strings (array possibly?) Is that possible? Something like: f
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How can I count all the lines of code in a directory recursively?
We've got a PHP application and want to count all the lines of code under a specific directory and its su
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How do I iterate over a range of numbers defined by variables in Bash?
How do I iterate over a range of numbers in Bash when the range is given by a variable? I know I can do this
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How to reload .bashrc settings without logging out and back in again?
If I make changes to .bashrc, how do I reload it without logging out and back in?
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How to check if a variable is set in Bash?
How do I know if a variable is set in Bash? For example, how do I check if the user gave the first parameter
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How do I set a variable to the output of a command in Bash?
I have a pretty simple script that is something like the following: #!/bin/bash VAR1="$1" MOREF='sudo r
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How to delete from a text file, all lines that contain a specific string?
How would I use sed to delete all lines in a text file that contain a specific string?
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How can I recursively find all files in current and subfolders based on wildcard matching?
How can I recursively find all files in current and subfolders based on wildcard matching?
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How to mkdir only if a directory does not already exist?
I am writing a shell script to run under the KornShell (ksh) on AIX. I would like to use the mkdir command to
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How do I split a string on a delimiter in Bash?
I have this string stored in a variable: IN="[email protected];[email protected]" Now I would like to split the stri
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In the shell, what does " 2>&1 " mean?
In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can
