--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/master/bin/pbash.sh	Fri Feb 08 17:46:49 2019 +0000
@@ -0,0 +1,41 @@
+#!/bin/bash
+if [ $# -lt 1 ]
+then
+  cat 1>&2 <<EOF
+Usage: $0 [-h sshHostFile] cmd [...args]
+Where SSname is the name of a VM scale set.
+sshHostFile (defaults to $WORKERS) is the name of a file in
+ .parallel which lists hosts and ports, see man parallel for details
+
+Runs cmds/cmdlines on every machine in a scale set,
+ using parallel --nonall
+
+cmd+args can be quoted to run over multiple lines
+
+Use xargs $0... to get multiple args from stdin, e.g.
+> xargs $0 W4 echo
+hello
+world
+^D
+hello world
+hello world
+...
+
+Do 
+ > echo 'will cite' | parallel --citation 2>/dev/null
+to turn off citation prompt
+EOF
+ exit 1
+fi
+if [ $1 = -h ]
+then
+ shift
+ shf="$1"
+ shift
+else
+ shf=$WORKERS
+fi
+parallel --sshloginfile $shf --nonall "$@"
+
+
+