The name1 and name2 variables store the consecutive filenames.
Here, we read the md5sum checksum of files into the csum1 and csum2 variables. Once the line is read, the entire line is in $0 and each column is available in $1, $2.If they are equal, it means that the two files are duplicates by size and must be further checked by md5sum. This block compares the size obtained from the current line and the previously stored size in the size variable. This value will be later stored in RET which is further used to check duplicate fileĮcho $(sha512sum $ block, the rest of the lines are read, one by one. # If file exists and the temporary file's size is zero # Before we check hash value of file, make this variable null # Store the hash of the file if not already added # Find duplicate files using shell script For example /etc/hosts and /etc/hosts.bak are same file so the script will fail to understand which file is important and it may delete /etc/hosts considering it as duplicate.īelow is the sample script to remove duplicate files with a prompt before deleting the file: #!/bin/bash This can help decide the user as which file out of the duplicates he/she wishes to delete. I have modified the script to prompt the user before removing any duplicate file. The script template is taken from bash cookbook. Script 1: Find duplicate files using shell script In my last article I shared multiple commands and methods to check if the node is connected to internet with shell script in Linux and Unix, Now in this article I will show some sample shell scripts to remove duplicate files. Linux find duplicate files by name and hash value. List the duplicate files in Linux using shell script.
#COMPARE FOLDERS AND FIND DUPLICATE FILES USING SCRIPT HOW TO#
How to find duplicate files using shell script in Linux. Related Searches: How to remove duplicate files in Linux or Unix.
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