Removing created temp files in unexpected bash exit

Question

I am creating temporary files from a bash script. I am deleting them at the end of the processing, but since the script is running for quite a long time, if I kill it or simply

Answer 1

You want to use the trap command to handle exiting the script or signals like CTRL-C. See the Greg's Wiki for details.

For your tempfiles, using basename $0 is a good idea, as well as providing a template that provides room for enough temp files:

tempfile() {
    tempprefix=$(basename "$0")
    mktemp /tmp/${tempprefix}.XXXXXX
}

TMP1=$(tempfile)
TMP2=$(tempfile)

trap 'rm -f $TMP1 $TMP2' EXIT