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Diff for /src/usr.bin/which/which.1 between version 1.3 and 1.4

version 1.3, 1997/01/07 15:57:48 version 1.4, 1997/02/21 18:34:59
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 .\"  .\"
 .\"     from: @(#)which.1       6.3 (Berkeley) 4/23/91  .\"     from: @(#)which.1       6.3 (Berkeley) 4/23/91
 .\"  .\"
 .Dd April 23, 1991  .Dd February 21, 1997
 .Dt WHICH 1  .Dt WHICH 1
 .Os BSD 3  .Os
 .Sh NAME  .Sh NAME
 .Nm which  .Nm which
 .Nd "locate a program file including aliases and paths"  .Nd "locate a program file (or files) in the path"
 .Pq Xr csh 1  
 only)  
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm which  .Nm which
 .Op Ar name  .Op Ar name
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 .Nm Which  .Nm Which
 takes a list of names and looks for the files which would be  takes a list of names and looks for the files which would be
 executed had these names been given as commands.  executed had these names been given as commands.
 Each argument is expanded if it is aliased,  Each argument is searched for along the user's path.
 and searched for along the user's path.  .Sh RETURN VALUES
 Both aliases and path are taken from the user's  
 .Pa \&.cshrc  
 file.  
 .Pp  
 The  The
 .Nm which  .Nm
 utility exits with one of the following values:  utility exits with one of the following values:
 .Bl -tag -width 4n  .Bl -tag -width 4n
 .It 0  .It 0
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 Some names got resolved but not all.  Some names got resolved but not all.
 .It 2  .It 2
 No names got resolved.  No names got resolved.
   .It -1
   A system error occurred.
 .El  .El
 .Sh FILES  
 .Bl -tag -width ~/\&.cshrc  
 .It Pa ~/\&.cshrc  
 source of aliases and path values  
 .El  
 .Sh DIAGNOSTICS  .Sh DIAGNOSTICS
 A diagnostic is given for names which are aliased to more than a single  A diagnostic is given if an executable file with the argument
 word,  name was not found in the path.
 or if an executable file with the argument name was not found in the path.  .Sh ENVIRONMENT VARIABLES
 .Sh BUGS  .Bl -tag -width PATH
 Must be executed by a  .It Ev PATH
   .Nm
   uses the environment variable
   .Ev PATH
   as a colon-separated list of directories in which to find executables.
   If
   .Ev PATH
   is not set, and the given name is not a fully-qualified
   or relative pathname,
   .Nm
   will fail.
   .El
   .Sh CAVEATS
   The
   .Nm
   command formerly was a
   .Xr csh 1
   script and could expand aliases.
   .Xr csh 1
   now has a built-in
   .Nm
   comand so this version is intended for use
   with other shells like
   .Xr sh 1 .
   .Sh SEE ALSO
 .Xr csh 1 ,  .Xr csh 1 ,
 or some other shell which knows about aliases.  .Xr sh 1 ,
   .Xr environ 7
 .Sh HISTORY  .Sh HISTORY
 The  A
 .Nm  .Nm
 command appeared in  command appeared in
 .Bx 3.0 .  .Bx 3.0 .
Legend:
Removed from v.1.3  
changed lines
  Added in v.1.4