What is the use of this switch ?

manswitch() { man $1 | grep -A5 "^ *\-$2"; }
Find the usage of a switch with out searching through the entire man page. Usage: manswitch [cmd] [switch] Eg: manswitch grep silent ____________________________ In simple words man <cmd> | grep "\-<switch>" Eg: man grep | grep "\-o" This is not a standard method but works.
Sample Output
$ manswitch grep o
       -o, --only-matching
              Print only the matched (non-empty) parts of a matching line, with each such part on a separate output line.

       -q, --quiet, --silent
              Quiet; do not write anything to standard output.  Exit immediately with zero status if any match is  found,
              even if an error was detected.  Also see the -s or --no-messages option.  (-q is specified by POSIX.)
ly mandates, for programs such as grep, cmp, and diff, that the exit

By: totti
2011-08-19 08:36:54

1 Alternatives + Submit Alt

What Others Think

That doesn't show you the details in several cases; just the line saying it's an option.
kaedenn · 537 weeks ago
This will give you only the first line of a switch's description, which may only be the long-form of the same switch. It will also bring up many false positives. man sed |grep -- -n Gives you three lines, only one is relevant, and it only tells you that '-n' is the same as '--silent' but doesn't tell you what '--silent' means.
Mozai · 537 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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