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What is the difference between ~ . profile and ~ . bash_profile? bash will try to source bash_profile first, but if that doesn't exist, it will source profile 1 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:
Source vs . why different behaviour? - Unix Linux Stack Exchange source is a shell keyword that is supposed to be used like this: sourcefile 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? source is there for readability and self-documentation, exists because it is quick to type The commands are identical 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
Using export and source commands in bashrc file HOWEVER, if I execute (separately) those above two lines in bash (i e , the above export and source commands), then bash knows what g16 is: g16 <input file> runs the software, and additionally, which g16 gives g16root g16 g16 So this works, but I have to reenter the export and source commands every time I log in to the (remote) machine
networking - Ephemeral port : What is it and what does it do? - Unix . . . Source Just as well-known and registered port numbers are used for server processes, ephemeral port numbers are for client processes only Source Without such ephemeral temporary ports assigned, there might be Internet Protocol (IP) network communication conflicts or downtimes For example, there are two web servers and both listen on port 80