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主要命令
vmstat 3 | (while read -r line; do echo "$(date): $line"; done) > xn.txt(在后台生成带具体时间的日志)
vmstat 3 | (while read -r line; do echo "$(date): $line"; done) | tee xn.txt(在后台生成带具体时间的日志并在命令行展示打印内容)
vmstat 3 | (while read -r line; do echo "$(date): $line"; done) | tee -a xn.txt(在后台生成带具体时间的日志打印内容,并且不删除上次的记录)
nohup ./test.sh > /usr/apache-tomcat-8.5.59/logs/xn.log &(启动,并把日志保存到指定位置)
1.进入到指定文件位置
cd /usr/apache-tomcat-8.5.59/bin/
2.创建启动文件
sudo touch test.sh
3.赋权
sudo chmod 777 test.sh
4.编辑,键入命令并保存
sudo vi test.sh
vmstat 3 | (while read -r line; do echo "$(date): $line"; done) | tee -a xn.txt
5.后台驱动文件并保存日志到指定位置
nohup ./test.sh > /usr/apache-tomcat-8.5.59/logs/xn.log &
输出结果如下:
[qmys@localhost logs]$ cat xn.log
Thu Nov 19 10:20:04 CST 2020: procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
Thu Nov 19 10:20:04 CST 2020: r b swpd free buff cache si so bi bo in cs us sy id wa st
Thu Nov 19 10:20:04 CST 2020: 2 0 0 23573396 1080 935580 0 0 0 0 3 3 1 0 99 0 0
Thu Nov 19 10:20:07 CST 2020: 1 0 0 23572616 1080 935588 0 0 0 0 1341 354 6 0 94 0 0
Thu Nov 19 10:20:10 CST 2020: 1 0 0 23572068 1080 935588 0 0 0 0 1290 391 6 0 94 0 0
Thu Nov 19 10:20:13 CST 2020: 1 0 0 23571840 1080 935588 0 0 0 0 1235 324 6 0 94 0 0
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