[ShellScript] Ubah huruf besar jadi kecil pada sebuah file


#!/bin/bash
namafile=$1
 
# cek filenya ada 
if [ ! -f $namafile ]; then
  echo "file $namafile tidak ada"
  exit 1
fi
 
tr '[A-Z]' '[a-z]'  < $namafile > output
mv output $namafile
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