mdw@git.distorted.org.uk Git - distorted-bits/blob - do-slaves

   1 #! /bin/sh
   2 set -e
   3
   4 ## Parse the command line.
   5 case "$#" in
   6   0 | 1)
   7     echo >&2 "Usage: $0 COMMAND SLAVE|:SET ..."
   8     exit 1
   9     ;;
  10 esac
  11 command=$1; shift
  12
  13 ## Expand slaves into a big list.
  14 slaves=$(expand-list /etc/slaves "$@")
  15
  16 ## Now do the stuff.
  17 for i in $slaves; do
  18   { { { echo "starting..."
  19         set +e; ssh "$i" "$command" 3>&-; rc=$?; set -e
  20         echo "done (rc = $rc)"; } >&3; } 2>&1 |
  21     while IFS= read -r line; do printf "!!! %s\n" "$line"; done; } 3>&1 |
  22   while IFS= read -r line; do printf "%s: %s\n" "$i" "$line"; done &
  23 done
  24 wait