Aug 27, 2011 · To set an environment variable from a script, use the export command in the script, and then source the script. If you execute the script it will not work. For an explanation of the difference …

Jan 30, 2017 · I found that on Bash 3.2.57, using declare -i x and then doing x+=1 in a loop (doing other thing), x did not increment more than one time. The let and (()) methods worked fine.

Apr 30, 2020 · The same thing I am trying to achieve I have to run this command source .venv/bin/activate through a bash script which is not running, as I need the env should get activated …

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.

Linux Bash Script, Single Command But Multiple Lines? Ask Question Asked 13 years, 1 month ago Modified 2 years, 8 months ago

Nov 30, 2014 · After man bash, some of the most important resources are Greg's wiki, Bash hackers and Steve Parker's recent book on Shell scripting that focuses mainly on Bash and is published by …

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 …

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

Mar 19, 2020 · What is [? [ performs a test. The purpose of [ is to test something (e.g. if some file exists) and to return exit status zero if the test succeeds, non-zero otherwise. [ is a command. [ is a …

Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value …