bash only print duplicated lines
# Basic syntax:
sort input_file | uniq -d
# Sort the file first because uniq requires a sorted file to work
# Note, uniq -d only prints one instance of lines that have duplicates
# Use, uniq -c to count the number of duplicates in the fileCopyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
