Shell script to run `git pull` inside all subdirectories which are git repositories. I keep a number of projects in a folder & this helps me avoid manually updating each.

update-repos.fish

#!/usr/bin/env fish
# similar script in Fish
# still under construction, need to quiet `git status` more effectively

function update -d 'Update git repo'
  git stash --quiet
  git pull
  git stash apply --quiet
end

for dir in ./*/
    cd $dir
    git status -sb 2>/dev/null
    if [ $status -eq 0 ]
        set_color red
        echo "Updating $dir…"
        set_color normal
        update
    end
    cd ..
end

update-repos.sh

#! /usr/bin/env bash
for dir in ./*/
do
  cd ${dir}
  git status >/dev/null 2>&1
  # check if exit status of above was 0, indicating we're in a git repo
  [ $(echo $?) -eq 0 ] && echo "Updating ${dir%*/}..." && git pull
  cd ..
done