mjhjmtu

On my home machine, I use the script gitpull.sh to concurrently pull all the changes to the git repos under a given directory.

#!/usr/bin/bash

find $1 -name ".git" | sed -r 's|/[^/]+$||' | parallel git -C pull origin master

My problem is that parallel is not installed on my work computer. Is it possible to alter my script without the use of parallel?

Instead of parallel you could use xargs with the -P flag. Something like:

find $1 -name ".git" | sed -r 's|/[^/]+$||' | xargs -I -n 1 -P 0 git -C pull origin master

You can use this tool Git-Plus to concurrently pull all the changes to the git repos under a given directory. Use this command

$ git multi pull

You can easily install it and use it .

You can do it using only bash, readlink, and find:

#!/bin/bash

while IFS= read -d '' -r g ; do 
 dir="$(readlink -f "$g/..")"
 git pull -C "$dir" origin master &
done < <(find "$@" -name '.git' -print0)

You can make it run a bit faster with careful use of find's -maxdepth option. e.g. if you know that all .git directories are going to be found only in the top-level sub-directories of the current directory, -maxdepth 3 will stop it recursing into any lower sub-directories.

I've used "$@" with the find command rather than the unquoted $1 you used so that not only is a directory argument optional, you can use multiple directory args and/or add whatever find options you might need to the command line.

If the version of find on your work computer doesn't do -print0, you can use n as the input separator, but the script will break if any directory names contain a newline (which is uncommon but perfectly valid).

while IFS= read -r g ; do 
 dir="$(readlink -f "$g/..")"
 git pull -C "$dir" origin master &
done < <(find "$@" -name '.git')