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How to find from within a csh script whether a certain command is available?

In a csh script, I need to perform something only if a certain command is available. I wanted to do something like

if( _WHAT_TO_PUT_HERE_ ) then   # enter only if command "cmd" is in the path
   cmd ...
endif

how to do that in csh or tcsh?

Solution

  • I guess using the where command will solve your issue

    Check this:

    ~/animesh >where grep
/bin/grep
/tools/cfr/bin/grep
~/animesh >where egrep
/bin/egrep
/tools/cfr/bin/egrep
~/animesh >where xgrep
~/animesh >

    so lets say you are trying to find a command named my_cmd try the following code:

    if(`where my_cmd` != "") then
   my_cmd
endif