thingsiplay , 7 days ago

You can just grep the help output

<span style="color:#323232;">$ rsync --help </span><span style="color:#0086b3;">2</span><span style="font-weight:bold;color:#a71d5d;">>&</span><span style="color:#323232;">amp</span><span style="font-weight:bold;color:#a71d5d;">;</span><span style="color:#323232;">1 </span><span style="font-weight:bold;color:#a71d5d;">| </span><span style="color:#323232;">grep -E </span><span style="color:#183691;">'^ *(--append-verify|--progress|--archive)'
</span><span style="color:#323232;">--archive, -a            archive mode is -rlptgoD (no -A,-X,-U,-N,-H)
</span><span style="color:#323232;">--append-verify          --append w/old data in file checksum
</span><span style="color:#323232;">--progress               show progress during transfer
</span>

So it should be possible to create a simple script to do that. Similarly one can output the man document as text to stdout, which in turn can be grepped. I have no grep command at hand to do this in a useful way:

<span style="color:#323232;">man grep </span><span style="font-weight:bold;color:#a71d5d;">| </span><span style="color:#323232;">col -b
</span>