Nov 30, 2014 · In practice, however, "shell script" and "bash script" are often used interchangeably, unless the shell in question is not Bash. EDIT: Actually, the default scripting shell in Ubuntu is dash, …

May 25, 2012 · A script may specify #!/bin/bash on the first line, meaning that the script should always be run with bash, rather than another shell. /bin/sh is an executable representing the system shell.

Your command-line environment is the parent of the script's shell, so it does not see the variable assignment. You can use the . (or source) bash command to execute the script commands in the …

Aug 27, 2011 · The variable will be set for the rest of the shell session or until unset. To set an environment variable everytime, use the export command in the .bashrc file (or the appropriate …

Sep 3, 2019 · I am running a command in my shell. It works ok in the shell. I mean just in terminal. But i need it to be run from a script file. When i run it from a script, the file specified in one option of the

May 1, 2011 · 112 You need to mark shell scripts as executable to run them from the file manager: Right click on your .sh file and select Properties: In the Permissions tab, check Allow executing file as …

Sourcing a script with the . or source buiiltin causes the current shell to execute all the commands in it. If alias expansion would occur in the shell in which . or source is run, it occurs.

Oct 5, 2011 · By contrast the source command doesn't start a new shell instance but uses the current shell so the changes remain. If you want a shortcut to read your .bashrc use a shell function or an …

Dec 16, 2012 · The bash command is actually store as /bin/bash and it is an executable on all Ubuntu systems. Creating a file of commands saves you from adding the shebang #!/bin/bash as the first line …

I'm creating a simple bash script and I want to create a select menu in it, like this: $./script echo "Choose your option:" 1) Option 1 2) Option 2 3) Option 3 4) Quit And according to u...