
command line - How do I run .sh scripts? - Ask Ubuntu
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 …
What is the meaning of $? in a shell script? - Unix & Linux Stack …
Feb 20, 2011 · This latter usage is faster, does not contaminate the shell's variable namespace with what amounts to temp variables, can often be a lot more readable for humans and encourages the …
How can I pass a command line argument into a shell script?
Feb 10, 2012 · The shell command and any arguments to that command appear as numbered shell variables: $0 has the string value of the command itself, something like script, ./script, …
bash - How do I add environment variables? - Ask Ubuntu
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 …
Linux Bash Shell Script Error: cannot execute: required file not found
Oct 21, 2022 · To solve this, convert your script from a DOS text file to a Unix text file. If you are editing scripts on Windows, you can probably do this by configuring the Windows text editor to create Unix …
Shell scripting: -z and -n options with if - Unix & Linux Stack Exchange
Jan 20, 2025 · Shell scripting: -z and -n options with if Ask Question Asked 12 years, 1 month ago Modified 1 year ago
shell - Starting with bash: -lt and -gt arguments - Unix & Linux Stack ...
For reading the script and executing it, I know what it does, but not what -lt and -gt are for. Can somebody tell me what is the name of that kind of 'tool' and what they (-lt and -gt) do?
linux - What does -f mean in an if statement in a bash script? - Unix ...
Jul 5, 2018 · The relevant man page to check for this is that of the shell itself, bash, because -f is functionality that the shell provides, it's a bash built-in. On my system (CentOS 7), the fine man page …
12.04 - Permission denied when running .sh scripts - Ask Ubuntu
Jan 22, 2014 · When we make a new script file then by default it has read and write permission. But if we want to execute them, then we should give execute permission as shown above. Execution bit …
What does ampersand mean at the end of a shell script line?
If the script starts with a shebang line (#!/bin/sh or similar), you can make it executable with chmod +x sys-snap.sh and start it directly by using ./sys-snap.sh if it is in the current directory. With & the …