Detailed explanation of the implementation process of Nginx log timing splitting in CentOS 7

1. Write a split script (splitNginxLog.sh)

* Because this example sets the log splitting to be performed at 0:00 every day, folder and rq are both set to use yesterday's date for archiving.

#!/bin/bash
folder=`date -d yesterday +%Y%m`
rq=`date -d yesterday +%Y%m%d`
# Original log path logs_path="/var/log/nginx/sitename.com/"
# Log backup path logs_backup_path="/var/log/nginx/sitename.com/$folder"
# Logs to be split logs_access="access"
logs_error="error"
# Create a backup path [ -d $logs_backup_path ]||mkdir -p $logs_backup_path
# Move the logs to the backup folder mv ${logs_path}${logs_access}.log ${logs_backup_path}/${logs_access}_${rq}.log
mv ${logs_path}${logs_error}.log ${logs_backup_path}/${logs_error}_${rq}.log
#Terminate nginx's pid
pid_path="/var/run/nginx.pid"
kill -USR1 $(cat $pid_path)

2. Test log splitting script

Run the following statement in the directory where the .sh file is stored to test whether the split script is successful.

# sh splitNginxLog.sh

If you get the error $'\r': command not found, it may be due to the encoding of the .sh file, because the script written in the Windows editor is slightly different from that in Linux.

Treatment method:

1. Install dos2unix for encoding conversion

# yum install dos2unix

2. Convert code

# dos2unix splitNginx.sh

3. Set up automatic execution

# crontab -l //List all scheduled tasks
# crontab -e //Edit scheduled tasks

Write the following statements in it:

00 00 * * * bash /root/splitNginxLog.sh

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