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Top Forums Shell Programming and Scripting Expect command when triggered by launchd Post 302734817 by rowie718 on Friday 23rd of November 2012 01:43:06 AM
Old 11-23-2012
Figured it out!

It wasnt anything about launchd session types or anything else. After reading a bit of the book "Exploring Expect", I followed up on a hint they gave about adding another expect line so the expect command doesnt end as soon as the first match is made and responded to. Here is the code that works, which is in a larger bash script:

Code:
/usr/bin/expect -c '
spawn slapconfig -backupdb "'"${recover}/_OD_Backup_${date}"'"
sleep 10
expect "Enter archive password:"
send "'"${passwd}\r"'"
expect "============"
' >${logfile}

For context, and hopefully to help other folks backing up mac servers, here is the larger bash script (which is a modified/updated older script I found online). It has been tested on 10.8.2 and works whether triggered via command line or launchdaemon (must be run as root). Adjust parameters at top of the script. The two variables with brackets (< and >) are required:

Code:
#!/bin/bash

# Path to the root folder where the backups will be stored
# This path should not be on the root volume, and not accessible
# to non-administrators

recover_path="<path/to/backup/folder>"

# Log file location

logfile="/Library/Logs/Server_Backup.log"

# You can either backup all of the services (even those not in use)
# or you can specify which services you want to backup.

# Path to serveradmin command

serveradmincmd="/Applications/Server.app/Contents/ServerRoot/usr/sbin/serveradmin"

services=`$serveradmincmd list`
#services="afp ipfilter smb"

# This is the password you will use to recover your OD sparseimage.
# It should NOT be the same as your Directory Administrator password
# for security reasons.

passwd="<password>"

# Number of days worth of backups to keep

backupdays="30"

###############################################################
#### Advanced modification only. The rest can be left as is ###
###############################################################

# This is the hostname of the server the script is running on
# This variable is used so that the same script can be run
# from multiple servers on a single share point
server=`hostname`

# Purge backups older than the amount of days user has set above

find "${recover_path}/$server/"* -maxdepth 0 -mtime +$backupdays -print | xargs rm

# Get today's date and format it as YYYYMMDD
date=`date ''+%c%m%d'' | awk '{printf $5}'`

# Set the full path to where this days backups will be stored
recover=${recover_path}/$server/$date

mkdir -p "${recover}"
chmod 600 "${recover}"

# grab the server configuration plists
for service in $services; do
    $serveradmincmd settings $service > "${recover}/$service.txt"
    sleep 1
done

# Backup Open Directory

/usr/bin/expect -c '
spawn slapconfig -backupdb "'"${recover}/_OD_Backup_${date}"'"
sleep 10
expect "Enter archive password:"
send "'"${passwd}\r"'"
expect "============"
' >${logfile}

echo "Script Complete at `date`" >>${logfile}
exit 0

 

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SERVICE(8)						    BSD System Manager's Manual 						SERVICE(8)

NAME
service -- control (start/stop/etc.) or list system services SYNOPSIS
service -e service -R service [-v] -l | -r service [-v] <rc.d script> start|stop|etc. DESCRIPTION
The service command is an easy interface to the rc.d system. Its primary purpose is to start and stop services provided by the rc.d scripts. When used for this purpose it will set the same restricted environment that is in use at boot time (see below). It can also be used to list the scripts using various criteria. The options are as follows: -e List services that are enabled. The list of scripts to check is compiled using rcorder(8) the same way that it is done in rc(8), then that list of scripts is checked for an "rcvar" assignment. If present the script is checked to see if it is enabled. -R Restart all enabled local services. -l List all files in /etc/rc.d and the local startup directories. As described in rc.conf(5) this is usually /usr/local/etc/rc.d. All files will be listed whether they are an actual rc.d script or not. -r Generate the rcorder(8) as in -e above, but list all of the files, not just what is enabled. -v Be slightly more verbose ENVIRONMENT
When used to run rc.d scripts the service command sets HOME to / and PATH to /sbin:/bin:/usr/sbin:/usr/bin which is how they are set in /etc/rc at boot time. EXIT STATUS
The service utility exits 0 on success, and >0 if an error occurs. EXAMPLES
The following are examples of typical usage of the service command: service named status service -rv The following programmable completion entry can be use in bash(1) for the names of the rc.d scripts: _service () { local cur cur=${COMP_WORDS[COMP_CWORD]} COMPREPLY=( $( compgen -W '$( service -l )' -- $cur ) ) return 0 } complete -F _service service SEE ALSO
bash(1) (ports/shells/bash), rc.conf(5), rc(8), rcorder(8) HISTORY
The service utility first appeared in FreeBSD 7.3. AUTHORS
This manual page was written by Douglas Barton <dougb@FreeBSD.org>. BSD
December 11, 2012 BSD
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