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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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RBASH(1)						      General Commands Manual							  RBASH(1)

NAME
rbash - restricted bash, see bash(1) RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow- ing are disallowed or not performed: o changing directories with cd o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV o specifying command names containing / o specifying a filename containing a / as an argument to the . builtin command o specifying a filename containing a slash as an argument to the -p option to the hash builtin command o importing function definitions from the shell environment at startup o parsing the value of SHELLOPTS from the shell environment at startup o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators o using the exec builtin command to replace the shell with another command o adding or deleting builtin commands with the -f and -d options to the enable builtin command o using the enable builtin command to enable disabled shell builtins o specifying the -p option to the command builtin command o turning off restricted mode with set +r or set +o restricted. These restrictions are enforced after any startup files are read. When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script. SEE ALSO
bash(1) GNU Bash-4.0 2004 Apr 20 RBASH(1)
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