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copied!<p>After some research I've found a solution. I don't know how it looks in Cisco, but I know how it works in Vyatta. The only flaw is that in this variant you have to press <kbd>TAB</kbd> 3 times to get a detailed help for the first time (first two times normal completion is printed). Once detailed help was shown, next <kbd>TAB</kbd>s will toggle normal and detailed completion.</p> <pre><code>comment_show_last_detailed=1 comment_show_last_position=0 _comment_show() { local cur opts i opt comment opts comments opts="result1 result2" comments="comment1 comment2" [ $comment_show_last_position -gt $COMP_POINT ] && comment_show_last_position=0 if [ $comment_show_last_detailed = 0 ] && [ $comment_show_last_position = $COMP_POINT ]; then for ((i=1; ;++i)); do opt=`echo "$opts" | cut -f$i -d$'\n'` [ -z "$opt" ] && break comment=`echo "$comments" | cut -f$i -d$'\n'` echo echo -n "$opt - $comment" done comment_show_last_detailed=1 COMPREPLY= else cur="${COMP_WORDS[COMP_CWORD]}" SAVEIFS="$IFS" IFS=$'\n' COMPREPLY=( $(compgen -W "${opts}" ${cur}) ) IFS="$SAVEIFS" comment_show_last_detailed=0 fi comment_show_last_position=$COMP_POINT } complete -F _comment_show comment </code></pre> <p>I even managed to reduce <kbd>TAB</kbd> pressings to only 2 using <code>COMP_TYPE</code> variable, but there is a problem that bash doesn't reprint current command line at the bottom line if some symbols were inserted after first <kbd>TAB</kbd> pressing, so there is a space for further research.</p>

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