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Operating Systems Solaris Explain @(#)cshrc 1.11 89/11/29 SMI Post 302843471 by fgrirx on Tuesday 13th of August 2013 12:09:32 PM
Old 08-13-2013
Explain @(#)cshrc 1.11 89/11/29 SMI

What does ' @(#)cshrc 1.11 89/11/29 SMI ' mean?
Can someone please deconstruct and explain the parts?
Code:
# @(#)cshrc 1.11 89/11/29 SMI

It is at the top of a the .cshrc of a new Solaris account I am working on.
I am familiar with using the first line of a script for setting the program/shell to use. Example: #!/bin/csh or #!/bin/sh or #!/ben/perl.
I am also familiar with leaving the first line blank or adding a comment. For .cshrc (opposed to my_script.csh) I just start with a # comment line.

Searching the internets, I see lots of examples of .cshrc posted that begin with this line, but I have not found anybody who explains what it is doing or where it comes from. The best I tell, it is just a comment. But why does it appear at the beginning of so many .cshrc files?

Last edited by fgrirx; 08-13-2013 at 07:02 PM.. Reason: bad grammer and misspelling
 
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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