Abort if the cd fails.
[rsync/rsync.git] / support / lsh
... / ...
CommitLineData
1#!/bin/sh
2# This script can be used as a "remote shell" command that is only
3# capable of pretending to connect to "localhost". This is useful
4# for testing or for running a local copy where the sender and the
5# receiver needs to use different options (e.g. --fake-super). If
6# we get a -l USER option, we try to use "sudo -u USER" to run the
7# command.
8
9user=''
10do_cd=y # Default path is user's home dir, just like ssh.
11
12while : ; do
13 case "$1" in
14 -l) user="$2"; shift; shift ;;
15 -l*) user=`echo "$1" | sed 's/^-l//'`; shift ;;
16 --no-cd) do_cd=n; shift ;;
17 -*) shift ;;
18 localhost) shift; break ;;
19 *) echo "lsh: unable to connect to host $1" 1>&2; exit 1 ;;
20 esac
21done
22
23if [ "$user" ]; then
24 prefix=''
25 if [ $do_cd = y ]; then
26 home=`perl -e "print((getpwnam('$user'))[7])"`
27 prefix="cd '$home' &&"
28 fi
29 sudo -H -u "$user" sh -c "$prefix $*"
30else
31 if [ $do_cd = y ]; then
32 cd || exit 1
33 fi
34 eval "${@}"
35fi