#!/bin/bash -x # These three options make it harder to for some part of a script to # fail without you recognizing it. nounset means that references to an # unset variable result in an error. This means that you can no longer # do stuff like this if VAR is potentially unset, because "$VAR" returns # an error rather than "": # # if [ "$VAR" ]; then # # fi # # To explicitly indicate that you are OK with the variable potentially # being empty you can instead use ${VAR:-}. set -o nounset set -o pipefail set -o errexit echo "" > all-papers.txt for pdf in *.pdf; do pdftotext -nopgbrk $pdf - >> all-papers.txt done echo "" > pdfs.html for pdf in *.pdf; do echo \$pdf\ >> pdfs.html done echo "" >> pdfs.html