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What is exec-PATH?
The exec-path is used by emacs itself to find programs it needs for its features, such as spell checking, file compression, compiling, grep, diff, etc.
What PATH does emacs use?
By default, emacs copies the value of (getenv “PATH”) to exec-path . So, their values should be identical.
What is Linux PATH?
PATH is an environmental variable in Linux and other Unix-like operating systems that tells the shell which directories to search for executable files (i.e., ready-to-run programs) in response to commands issued by a user.
What is PATH PATH?
PATH is an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs are located. In general, each executing process or user session has its own PATH setting.
Should I add Python to PATH?
Adding Python to PATH makes it possible for you to run (use) Python from your command prompt (also known as command-line or cmd). You may have installed Python without adding it to PATH, not to worry, you can still add it. You don’t have to uninstall and reinstall it.
Which is not on PATH Python?
One of the most common problems with running Python tools like pip is the “not on PATH” error. This means that Python cannot find the tool you’re trying to run in your current directory. In most cases, you’ll need to navigate to the directory in which the tool is installed before you can run the command to launch it.
When to use exec-path before path in Elisp?
As Francesco says, this can be especially confusing for shell-command, as that does not run a process directly, but calls a shell to run it, which will use PATH, not exec-path. Do note that add-to-list adds to the beginning of the list, so this will end up with “PATH2” being in the exec-path before “PATH1”.
Where is the Exec PATH variable in Emacs?
Exec Path. This variable is the equivalent of the PATH environment variable for Emacs. It contains a list of directories Emacs will search for executables. Here’s an example of appending the /sw/bin directory to the exec-path and PATH variables (useful for Mac OS X users running LaTeX ):
Do you need to add multiple directories to Exec-path?
If you want to add multiple directories to exec-path, you should use add-to-list multiple times. Regarding your third question, if emacs was launched from the desktop environment, it inherits the environment from it, which might be less complete than that of a full shell.