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What is the difference between . . and source? [duplicate] 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 vs . why different behaviour? - Unix Linux Stack Exchange 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
What is the difference between . and source in shells? 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
How do I apply the changes to the . zshrc file after editing it? You could source the new file, which would work for some changes, possibly including updating the PATH variable (depending on other lines) However, sourcing it would simply run zshrc again, and you might execute unexpected duplicate commands Moreover, if there were deleted lines from the old zshrc, then they wouldn't be "erased" from the
How can I make a script in etc init. d start at boot? 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
bash: ‘export: command not found - Unix Linux Stack Exchange 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 reduce a videos size with ffmpeg? 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)?
What is the difference between building from source and using an . . . I 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