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Re^4: Output of a command

by gaal (Parson)
on Jul 30, 2008 at 06:05 UTC ( #701027=note: print w/ replies, xml ) Need Help??

in reply to Re^3: Output of a command
in thread Output of a command

It's a pet peeve of mine for help text explicitly requested to go to stderr. If I asked for it, and it's long, please put it on stdout so I don't have to work harder to pipe it into $PAGER. Of course, if something's wrong and you need to give me an error message with some helpful text, it's fine to put it on stderr to lessen the chance of breaking my pipes.

Comment on Re^4: Output of a command
Re^5: Output of a command
by Anomynous Monk (Scribe) on Jul 30, 2008 at 06:35 UTC
    Yeah. Help going to stderr also breaks the --help|less idiom.
      ... then frustratingly one invokes p --help 2>&1 | q (in a bourne like shell).

      Which is why you should use a better shell and just use --help |& less instead (and set up abbrevs so you can just type ,le SPC which expands into |& less for you . . . :).

      The cake is a lie.
      The cake is a lie.
      The cake is a lie.

        Actually, what I do for this stuff is set up the following in my .bashrc:

        # automatically keep output of commands in a logfile for immediate # subsequent inspection alias ll="$PAGER /tmp/last.log" l () { if [ "x$1" = "x" ] ; then echo "did you mean 'll'?" ; \ else /usr/bin/env " $@" 2>&1 | tee /tmp/last.log ; fi }

        l !! and then ll is less mental load for me.

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