http://www.bing.com:80/search?q=Source+Reduction+ChartSearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Source+Reduction+ChartCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://unix.stackexchange.com/questions/312573/what-is-the-difference-between-and-sourceWhen 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 ..Sun, 12 Apr 2026 20:43:00 GMThttps://unix.stackexchange.com/questions/309768/source-vs-why-different-behavioursource 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.Sat, 11 Apr 2026 04:23:00 GMThttps://unix.stackexchange.com/questions/58514/what-is-the-difference-between-and-source-in-shells2 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.Fri, 17 Apr 2026 09:24:00 GMThttps://unix.stackexchange.com/questions/700821/error-while-trying-to-source-a-zshrc-fileYou're missing / Your command source ~.zshrc tries to lookup the home directory for a user called .zshrc. The source command would presumably attempt to execute that user's home directory - and fail. What you probably meant was this, which looks up your home directory with ~ and then source can execute the commands in a file .zshrc in there. source ~/.zshrcSat, 18 Apr 2026 05:12:00 GMThttps://unix.stackexchange.com/questions/116584/bash-script-error-source-not-foundYou 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.Wed, 15 Apr 2026 00:51:00 GMThttps://unix.stackexchange.com/questions/202332/sudo-source-command-not-found34 source is a shell builtin, so it cannot be executed without the shell. However, by default, sudo do not run shell. From sudo Process model When sudo runs a command, it calls fork (2), sets up the execution environment as described above, and calls the execve system call in the child process If you want to explicitly execute shell, use -s option:Thu, 16 Apr 2026 03:13:00 GMThttps://unix.stackexchange.com/questions/43882/what-is-the-difference-between-sourcing-or-source-and-executing-a-file-iWhat is the difference between sourcing ('.' or 'source') and executing a file in bash? Ask Question Asked 13 years, 8 months ago Modified 5 years, 1 month agoFri, 17 Apr 2026 06:04:00 GMThttps://unix.stackexchange.com/questions/712749/copy-file-to-same-path-as-source-without-changing-directoriesFor example if you started typing or copy/pasting the source path including filename, and only after that you realize you want the copy to be in that directory, ctrl-left-arrow to move the cursor backward-word before killing/yanking the directory part, then ctrl-e for end of line before yanking another copy of it.Tue, 14 Apr 2026 00:59:00 GMThttps://unix.stackexchange.com/questions/732030/conflicting-values-set-for-option-signed-by-regarding-sourceConflicting values set for option Signed-By regarding source Ask Question Asked 3 years, 2 months ago Modified 6 days agoTue, 14 Apr 2026 04:13:00 GMThttps://unix.stackexchange.com/questions/152346/what-is-the-difference-between-building-from-source-and-using-an-install-packageI.e., unpack the source package from your distribution, replace the source with the upstream version, check if any of the distribution's patches or configuration tweaks still apply, build the binary package (make sure you changed the version of the packaged stuff!) and install that one. Yes, it is more work than just building and installing.Thu, 09 Apr 2026 10:09:00 GMT