bash script help splitting string

JaredBusch

I have some old code that I need to update.

# initializing agi variables
declare -a array
while read -e ARG && [ "$ARG" ] ; do
 array=(` echo $ARG | sed -e 's/://'`)
 export ${array[0]}=${array[1]}
done

The source data looks like this.

Begin Argument dump:
 agi_request: testalert.agi
 agi_channel: PJSIP/103-00000b10
 agi_language: en
 agi_type: PJSIP
 agi_uniqueid: 1593012912.5212
 agi_version: 17.3.0
 agi_callerid: 16365551212
 agi_calleridname: Bundy Assoc Inc
 agi_callingpres: 0
 agi_callingani2: 0
 agi_callington: 0
 agi_callingtns: 0
 agi_dnid: 6605551212
 agi_rdnis: unknown
 agi_context: macro-dialout-trunk
 agi_extension: continue
 agi_priority: 2
 agi_enhanced: 0.0
 agi_accountcode: JB103
 agi_threadid: 140422957213440

The problem is the Caller ID Name has spaces which get automatically split into further array elements.

I was thinking to use IFS, but then I thought we recently had a thread with a different method that was better, but I cannot find that... My google failed me this morning.

matteo nunziati

try this:

# initializing agi variables
declare -a array
while read -e ARG && [ "$ARG" ] ; do
 array=(` echo "$ARG" | sed -e 's/://'`)
 export ${array[0]}=${array[@]:1}
#next added line for debug only. comment this out in prod.
 echo "${array[0]}=${array[@]:1}"
done

if you want to "slice" an array use the syntax: ${array[@]:from:to}, not providing the 'to' arg means go up to the end of array.
source here.

JaredBusch

@matteo-nunziati said in bash script help splitting string:

try this:
# initializing agi variables
declare -a array
while read -e ARG && [ "$ARG" ] ; do
 array=(` echo "$ARG" | sed -e 's/://'`)
 export ${array[0]}=${array[@]:1}
#next added line for debug only. comment this out in prod.
 echo "${array[0]}=${array[@]:1}"
done
if you want to "slice" an array use the syntax: ${array[@]:from:to}, not providing the 'to' arg means go up to the end of array.
source here.

Almost right. Because of the export command parsing spaces, I needed to stick it in a variable first.

# Variable to hold the details for the log file
DUMPARG=" Begin Argument dump:\n"
# Create an Array to hold the results of the loop
declare -a array
# Loop through the AGI variables
while read -e ARG && [ "$ARG" ] ; do
 # Dump them into an array, after removing the :
 array=(` echo $ARG | sed -e 's/://'`)
 # take the array and create a variable from the first element put the rest as the value
 # value must be put into a holding variable to parse correctly by the export command
 val=${array[@]:1}
 export ${array[0]}="$val"
 # Dump them into a string for the log file
 DUMPARG="$DUMPARG $ARG\n"
done

Unsolved bash script help splitting string