Sep 27, 2016 · When the script is done, any changes that it made to the environment are discarded. . script The above sources the script. It is as if the commands had been typed in directly. Any environment changes are kept. source script This also sources the script. The source command is not required by POSIX and therefore is less portable than the shorter ..

source is a shell keyword that is supposed to be used like this: source file where file contains valid shell commands. These shell commands will be executed in the current shell as if typed from the command line.

2 source is there for readability and self-documentation, . exists because it is quick to type. The commands are identical. Perl has long and short versions of many of its control variables for the same reason.

You have an alias which is overriding the builtin source (fix with unalias source) You have a function which is overriding source (fix with unset -f source) You are somehow not using bash (although your bang line would suggest you are). source is not POSIX. Using source on dash does not work, only . works.

Nov 23, 2017 · There is a mistake every time a new terminal is opened, error: "bash: ‘export: command not found" I only copy export all_proxy="" and export ALL_PROXY="" to terminal,then when I open a new termi...

How can I use ffmpeg to reduce the size of a video by lowering the quality (as minimally as possible, naturally, because I need it to run on a mobile device that doesn't have much available space)?...

Aug 10, 2015 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation and how do I get it? Instead, you can save this post to reference later.

Jul 30, 2020 · I've read that BASH_SOURCE should be populated with the name of the executing script (and it works!). But why does BASH_SOURCE hold the name of the executing script, when it is defined in man bash as an array of source filenames corresponding to shell functions?

Apr 20, 2017 · I think I read something a while back about this, but I can't remember how it's done. Essentially, I have a service in /etc/init.d which I'd like to start automatically at boot time. I remember i...

Sep 28, 2017 · i run ubuntu os. i read similar question but my problem is different whenever i launch the terminal it hangs for few seconds showing this message: bash: source: filename argument required source: