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Get a list of commands for which there are no manpages

Terminal - Get a list of commands for which there are no manpages
for file in $(ls /usr/bin ) ; do man -w $file 2>> nomanlist.txt >/dev/null ; done
2010-07-26 19:39:53
User: camocrazed
Functions: file ls man
-2
Get a list of commands for which there are no manpages

This takes quite a while on my system. You may want to test it out with /bin first, or background it and keep working.

If you want to get rid of the "No manual entry for [whatever]" and just have the [whatever], use the following sed command after this one finishes.

sed -n 's/^No manual entry for \(.*\)/\1/p' nomanlist.txt

Alternatives

There are 6 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

No need for sed or even the text file.

for file in $(ls /usr/bin); do man -w $file 2>&1 | awk '/No/{print $5}'; done
Comment by kaedenn 221 weeks and 4 days ago

This is a misuse of ls!

for file in /usr/bin/*; do ; done

is sufficient.

Comment by ScriptDevil 221 weeks and 3 days ago

@kaedenn

Looks good. You should submit it as an alternate command.

The reason for the extra file was so that I wasn't invoking sed several thousand times during the loop

@ScriptDevil

Have you even tried your way first? If I remove the ls command, I simply get a directory listing on stdout, not what I'm looking for.

If it works for you , great, but either post a full, working command so we see what you tried, or don't post one because it appears to me that you didn't even test your method before posting.

This is what I tried based on your post. I get stdout.txt full of the complete list of files, and stderr.txt is empty.

for file in /usr/bin/*; do man -w $file 2>>stderr.txt 1>>stdout.txt; done
Comment by camocrazed 221 weeks and 3 days ago

Your point of view

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