Retrieve JSS asset tags for list of serial numbers

GetAssetTagViaSerialNumber.sh

#!/bin/bash

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# 
# Written by: William Smith
#
# Last updated: May 7, 2015
#
# Purpose: Retrieves list of asset tags from list of iOS serial numbers.
# Serial numbers should be in a serialnumbers.txt file in the same
# directory as this script with one serial number per line.
# 
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #


####################################
# start the timer
####################################


# the time right now
STARTTIME=$( /bin/date '+%s' )


####################################
# JSS URL and credentials
####################################


URL="https://jss.domain.com:8443"
USERNAME="JSSAPI"
PASSWORD="password"


####################################
# File locations
####################################


# path to this script
CURRENTDIRECTORY=$( /usr/bin/dirname "$0" )

# name of this script
CURRENTSCRIPT=$( /usr/bin/basename -s .sh "$0" )

# create log file in same directory as script
LOGFILE="$CURRENTDIRECTORY/$CURRENTSCRIPT - $( /bin/date '+%y-%m-%d' ).log"

# read the serial number list file
SERIALNUMBERLIST=$( cat "$CURRENTDIRECTORY/serialnumbers.txt" )


####################################
# Functions
####################################


function logresult()	{
	if [ $? = 0 ] ; then
	  /bin/date "+%Y-%m-%d %H:%M:%S	$1" >> "$LOGFILE"
	else
	  /bin/date "+%Y-%m-%d %H:%M:%S	$2" >> "$LOGFILE"
	fi
}


####################################
# Rotate logs
####################################


# start the log
logresult "--------------------- Begin Script ---------------------"

# rotate logs -- delete all but the five most recent log files
DELETEOLDLOGS=$( /bin/ls -1t "$CURRENTDIRECTORY/$CURRENTSCRIPT"*.log | /usr/bin/tail -n +6 )

while IFS= read -r ALINE
do
	LOGFILENAME=$( /usr/bin/basename "$ALINE" )
	/bin/rm "$ALINE"
	logresult "Deleting old log file: $LOGFILENAME."
done <<< "$DELETEOLDLOGS"


####################################
# Read each serial number in the
# list and retrieve each asset tag
# from the JSS.
####################################


while IFS= read -r ALINE
do
	DEVICERECORD=$( /usr/bin/curl -k 0 $URL/JSSResource/mobiledevices/serialnumber/$ALINE --user "$USERNAME:$PASSWORD" -H "Content-Type: text/xml" -X GET )
	echo "$DEVICERECORD"
	ASSETTAG=$( /bin/echo "$DEVICERECORD" | /usr/bin/perl -lne 'BEGIN{undef $/} while (/<asset_tag>(.*?)<\/asset_tag>/sg){print $1}' )
	echo "$ASSETTAG"

	# log the result
	logresult "$ALINE - $ASSETTAG" "$ALINE - Asset tag not found"
	
done <<< "$SERIALNUMBERLIST"


####################################
# stop the timer
# calculate how long the script ran
####################################


logresult "Completing script."

# the time right now
STOPTIME=$( /bin/date '+%s' )

# subtract start time from stop time and log the time in seconds
DIFF=$(($STOPTIME-$STARTTIME))
logresult "Script operations took $DIFF seconds to complete."


logresult "---------------------- End Script ----------------------

"

exit 0