CommandLineFu: Read list of filenames – test if they exist

while read -r file; do if [[ ! -e $file ]]; then echo "$file|error" ; fi ; done < input.txt

I’ll usually pipe the output to tee so I can watch what’s going on:

while read -r file; do if [[ ! -e $file ]]; then echo "$file|error" ; fi ; done < input.txt | tee error_report.txt
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