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Full Discussion: Unexpected command/filename substitution ( caused by alias?)
Top Forums UNIX for Dummies Questions & Answers Unexpected command/filename substitution ( caused by alias?) Post 302773693 by Don Cragun on Thursday 28th of February 2013 01:43:16 PM
Old 02-28-2013
The cat utility is being asked to read a file; the source utility is being asked to execute a file. When you execute a file, lots of additional processing is invoked to find the file to be executed (alias searches, $PATH searches, ...) that is not done when you are just reading a file.
This User Gave Thanks to Don Cragun For This Post:
phil518
 

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LEARN ABOUT FREEBSD

whatis

APROPOS(1)						    BSD General Commands Manual 						APROPOS(1)

NAME

     apropos, whatis -- keyword search whatis documentation databases

SYNOPSIS

     apropos [-d] keyword ...
     whatis [-d] keyword ...

DESCRIPTION

     The apropos utility searches a set of databases looking for documentation matching each keyword and displays the results.	The whatis utility
     does the same search but only on complete words.

     -d  Print extra debugging information.

     The keyword is simply passed to grep(1) allowing for extended regular expression matches.

ENVIRONMENT

     The following environment variables affect the execution of apropos:

     MANLOCALES, MANPATH, PATH
	    Used to find the location of the whatis database files. See manpath(1) for additional information.

     PAGER  Program used to display files.  If unset, more -s is used.

DIAGNOSTICS

     The apropos utility exits 0 if a keyword matched and 1 if no keywords are matched or no whatis databases are found.

SEE ALSO

     grep(1), makewhatis(1), man(1), manpath(1), man.conf(5)

BSD
								 September 1, 2010							       BSD
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