Batch execute any single mercurial command on all repositories within a directory.

hgbatch.sh

#!/bin/bash

# This script finds all the mercurial repositories in the current directory
# and does a "hg $@" to batch execute a mercurial command in all the repositories.
#
# Make sure you know what you're doing before running this ;-)
#
# Examples:
#
#    Perform pull -u on all repositories to get the latest changes and update:
#    $ hgbatch pull -u
#
#    Check for all incoming changes on all repositories:
#    $ hgbatch incoming

confirm_prompt() {
   read -p "Are you sure you want to 'hg $cmd' every repository? " -n 1
   echo
   if [[ ! $REPLY =~ ^[Yy]$ ]]; then
      exit 1
   fi
}

cmd=$@
targetDir=`pwd`
dirObjs=`ls $targetDir`

confirm_prompt

# check the current directory for mercurial repositories
for d in $dirObjs
do
  if [ -d $d ] && [ -f "$d/.hg/hgrc" ]; then
    echo "--------"
    echo "Executing 'hg $cmd' in $d:"
    cd $d
    hg $cmd
    cd ..
  fi
done