To manually rotate log files

manual_logrotate.sh

#!/bin/bash

if [ -z $1 ]
then
	echo -e "Usage is: ./main.sh PATH_TO_FILE\nExample: ./main.sh /var/log/nginx/access_log"
	      exit 1
fi

file=$1

if [ ! -f "$file" ]; then
   echo "$file not found"
   exit 1
fi

# Variables
rotateDate="$(date +%Y_%m_%d)"
rotatedFile=$file"-ROTATED_IN_$rotateDate"

# Get original file Permissions and Owner
orgOwner="$(ls -l $file | awk '{print $3}')"
orgGroup="$(ls -l $file | awk '{print$4}')"
orgPermission="(stat -c '%a' $file)"

# Rename original file to Rotated file name
mv $file $rotatedFile
# Recreate file
touch $file
# Restore owner and group
chown $orgOwner:$orgGroup $file
chmod $orgPermission $file

gzip $rotatedFile

echo "File rotated successfuly"