What is the difference between . . and source? 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
How to compile and install programs from source That being said +1 bump for asking a common question that should be answered for all newcomers to *nix systems :) Building from source sometimes means the difference between fixing a nasty bug and just suffering until the next software release It's really not that bad, and as many here have pointed out, once you know what to look for and how to do it, fairly painless
How to correctly add a path to PATH? - Unix Linux Stack Exchange I'm wondering where a new path has to be added to the PATH environment variable I know this can be accomplished by editing bashrc (for example), but it's not clear how to do this This way: exp
software installation - uninstall Python installed by compiling source . . . From README in the source installation package: On Unix and Mac systems if you intend to install multiple versions of Python using the same installation prefix (--prefix argument to the configure script) you must take care that your primary python executable is not overwritten by the installation of a different version