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Bash Scriptlets

Bits of bash shell scripting that are handy from time to time.


#!/bin/bash
datestamp=$(date +%s)
find ./ -name '*Copy*'|grep -v '\$' |while read cn;do
 nn="$(echo "$cn"|sed 's/\(.*\) \- Copy[^\.]*\(\..*\)/\1\2/g')"
 if [ -f "$nn" ] && [ -f "$cn" ] && [ "$nn" != "$cn" ];then
  echo -e "Old: $cn\nNew: $nn"
  echo "Copy found."
  s1="$(sha256sum "$nn"|cut -f1 -d' ')"
  s2="$(sha256sum "$cn"|cut -f1 -d' ')"
  echo "Checksums: $s1 vs $s2"
  extension="${cn##*.}"
  if [ "$s1" == "$s2" ] || [ "$extension" == "lnk" ];then
   echo "Matching checksums, or link, removing extraneous copy: $cn"
   echo "echo -e \"${cn} is a duplicate of ${nn}\\n removing ${cn}\"" | tee -a /tmp/duplicates_removal.${datestamp}.bash
   echo "rm -vf \"$cn\"" | tee -a /tmp/duplicates_removal.${datestamp}.bash
  fi
 fi
done
echo "Complete the deletions with \$ bash /tmp/duplicates_removal.${datestamp}.bash




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