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copied!<p>I ran into this problem as well and came up with this code snippet. This will automatically give you completion for all aliases. Run it after declaring all (or any) alias.</p> <pre><code># wrap_alias takes three arguments: # $1: The name of the alias # $2: The command used in the alias # $3: The arguments in the alias all in one string # Generate a wrapper completion function (completer) for an alias # based on the command and the given arguments, if there is a # completer for the command, and set the wrapper as the completer for # the alias. function wrap_alias() { [[ "$#" == 3 ]] || return 1 local alias_name="$1" local aliased_command="$2" local alias_arguments="$3" local num_alias_arguments=$(echo "$alias_arguments" | wc -w) # The completion currently being used for the aliased command. local completion=$(complete -p $aliased_command 2> /dev/null) # Only a completer based on a function can be wrapped so look for -F # in the current completion. This check will also catch commands # with no completer for which $completion will be empty. echo $completion | grep -q -- -F || return 0 local namespace=alias_completion:: # Extract the name of the completion function from a string that # looks like: something -F function_name something # First strip the beginning of the string up to the function name by # removing "* -F " from the front. local completion_function=${completion##* -F } # Then strip " *" from the end, leaving only the function name. completion_function=${completion_function%% *} # Try to prevent an infinite loop by not wrapping a function # generated by this function. This can happen when the user runs # this twice for an alias like ls='ls --color=auto' or alias l='ls' # and alias ls='l foo' [[ "${completion_function#$namespace}" != $completion_function ]] && return 0 local wrapper_name="${namespace}${alias_name}" eval " function ${wrapper_name}() { let COMP_CWORD+=$num_alias_arguments args=( \"${alias_arguments}\" ) COMP_WORDS=( $aliased_command \${args[@]} \${COMP_WORDS[@]:1} ) $completion_function } " # To create the new completion we use the old one with two # replacements: # 1) Replace the function with the wrapper. local new_completion=${completion/-F * /-F $wrapper_name } # 2) Replace the command being completed with the alias. new_completion="${new_completion% *} $alias_name" eval "$new_completion" } # For each defined alias, extract the necessary elements and use them # to call wrap_alias. eval "$(alias -p | sed -e 's/alias \([^=][^=]*\)='\''\([^ ][^ ]*\) *\(.*\)'\''/wrap_alias \1 \2 '\''\3'\'' /')" unset wrap_alias </code></pre>

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