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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
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
Source shell script automatically in terminal How can I automatically source a particular shell script when I open a terminal window by right clicking somewhere and choosing "open in terminal"? For example, every time I open a terminal I need
What is the difference between ~ . profile and ~ . bash_profile? The original sh sourced profile on startup bash will try to source bash_profile first, but if that doesn't exist, it will source profile Note that if bash is started as sh (e g bin sh is a link to bin bash) or is started with the --posix flag, it tries to emulate sh, and only reads profile Footnotes: Actually, the first one of bash_profile, bash_login, profile See also: Bash