linux - Restrict logging for a particular child shell script -

i'm running bunch of scripts through 1 main parent script. have added logging code in parent script below:

exec 3>&1 4>&2 trap 'exec 2>&4 1>&3' 0 1 2 3 exec 1>logfilename 2>&1 

this generates logs child scripts. want skip log generation 1 particular script, since logs can heavy @ times.

is there way this? many thanks!

my parent script looks this:

mkdir -p $scriptfolder/log logfile="$scriptfolder/log/$(echo "$4" | tr -d '\n\r')_log_importmain_$datetime.log" exec 3>&1 4>&2 trap 'exec 2>&4 1>&3' 0 1 2 3 exec 1>$logfile 2>&1 source $scriptfolder/shellscripts/1.copyfilesfromftp.sh source $scriptfolder/shellscripts/2.import.sh source $scriptfolder/shellscripts/3.export.sh source $scriptfolder/shellscripts/4.copyfilestoftp.sh 

i want skip logging 3.export.sh, there way possible this?

you not running scripts subprocesses, question implies "parent" term, anyway, can have redirection individual command, this:

mkdir -p "$scriptfolder"log       # notice quoting logfile="$scriptfolder/log/$(echo "$4" | tr -d '\n\r')_log_importmain_$datetime.log" exec 3>&1 4>&2 trap 'exec 2>&4 1>&3' 0 1 2 3 15  # notice addition of 15 exec 1>"$logfile" 2>&1            # notice quoting here, source $scriptfolder/shellscripts/1.copyfilesfromftp.sh source $scriptfolder/shellscripts/2.import.sh # temporarily disable logging source statement source $scriptfolder/shellscripts/3.export.sh >/dev/null 2>&1 source $scriptfolder/shellscripts/4.copyfilestoftp.sh 

the >/dev/null 2>&1 in effect duration of third source statement, , file descriptors restored previous state when finishes.

by way, sure "$4" can contain embedded newlines, , want remove them in case? trailing newline echo trimmed off anyway, perhaps want logfile="$scriptfolder/log/${4}_log_importmain_$datetime.log"