Get output of last command on fish shell
Consider you ran
git status or
foo | rg bar and want to take one line of the output and either run something else with it or copy it to clipboard.
Fish shell is an excellent, extensible shell. It doesn’t have an easy way to re-run the last command. But it has excellent readable scripting support to create a similar effect.
Create a function such as
set -l FZF_OUT (eval $history | fzf --height 15%)
if test -n "$FZF_OUT"
commandline -r $FZF_OUT
commandline --cursor 0
in your functions folder in
In the above,
$history brings up the last command you ran and run it again via
eval. Pipe it through
fzf which is an excellent tool to interactively select (or fuzzy search) one line in the output of the last command. See screenshot below.
Once you select a line, the line is saved in a variable
commandline is used first with
-r to replace the current command buffer with the line from the last command you selected. Then via
--cursor, move the cursor back to the beginning of the line so you can prepend another command to the line you selected.
You can then bind it with a hotkey to run the whole thing with a shortcut each time. Such as with
bind \er __select_from_last which runs the script each time you press alt-r.
In the above screenshot, after running
git branch, you can then easily press alt-r, select one line from the
git branch output and either run something else with one branch, such as
git checkout or use ctrl-x to copy it to clipboard (if the
fish_clipboard_copy function is bound to your ctrl-x).