linux-kernel - Bash scripts for taking backups of files and comparing the current file with the latest backed up version of the file.

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Message-ID: <CAFf+5zix1c=mfUBWW2tiz7KkNsPmPOBgmFcHZd8HLtOVn3sAGw@mail.gmail.com>
Date: Thu, 8 Jan 2026 10:54:02 +0530
From: Amit <amitchoudhary0523@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Bash scripts for taking backups of files and comparing the current
 file with the latest backed up version of the file.

Bash scripts for taking backups of files and comparing the current
file with the latest backed up version of the file.

-------------------
mybackup.sh
-------------------
--------------------------------------------------------------------------------------------
#!/bin/bash

backup_dir=~/backups

date=`date "+%Y-%m-%d-%H-%M-%S"`

set -x

cp $1 $backup_dir/$1.$date
--------------------------------------------------------------------------------------------

Example usage: mybackup.sh myfile.c

-------------------------------------------------------------------
compare_file_with_lastest_backed_up_version.sh
-------------------------------------------------------------------
--------------------------------------------------------------------------------------------
#!/bin/bash

ls -tr -1 ~/backups/$1.*

last=`ls -tr -1 ~/backups/$1.* | tail -n 1`

echo

set -x

diff -u $last $1
--------------------------------------------------------------------------------------------

Example usage: compare_file_with_lastest_backed_up_version.sh myfile.c

----