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Full Discussion: which CMD in csh
Top Forums Shell Programming and Scripting which CMD in csh Post 302414819 by tpltp on Wednesday 21st of April 2010 05:02:29 AM
Old 04-21-2010
which CMD in csh

Today I encounter one problem, I ran one script like follows:

Code:
#!/bin/csh -f

which ls

It supposes to skip the .cshrc and .login files when run this script with the "-f" option, but it does NOT.

I can see the "which" cmd first source the .cshrc ( I marked one "echo " in .cshrc ), then print out the "ls" path.
And with "-f" option, it still can inherit the ENV variables but can't get the defined variables from the current shell.

My question is
How to avoid the script to inherit the ENV variables from the current shell, or at least avoid to "source .cshrc" when ran "which" cmd?

Thanks very much
 

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which(1)							   User Commands							  which(1)

NAME
which - locate a command; display its pathname or alias SYNOPSIS
which [filename...] DESCRIPTION
which takes a list of names and looks for the files which would be executed had these names been given as commands. Each argument is expanded if it is aliased, and searched for along the user's path. Both aliases and path are taken from the user's .cshrc file. FILES
~/.cshrc source of aliases and path values /usr/bin/which ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), attributes(5) DIAGNOSTICS
A diagnostic is given for names which are aliased to more than a single word, or if an executable file with the argument name was not found in the path. NOTES
which is not a shell built-in command; it is the UNIX command, /usr/bin/which BUGS
Only aliases and paths from ~/.cshrc are used; importing from the current environment is not attempted. Must be executed by csh(1), since only csh knows about aliases. To compensate for ~/.cshrc files in which aliases depend upon the prompt variable being set, which sets this variable to NULL. If the ~/.cshrc produces output or prompts for input when prompt is set, which may produce some strange results. SunOS 5.10 26 Sep 1992 which(1)
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