linux 清空tomcat日志catalina.out、清空mysql 错误日志mysqld.log

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 1.命令:echo "" >mysqld.log  清除mysql日志磁盘的前后对比,开始111G可用,清完之后226G可用

[root@jwxt log]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       291G  166G  111G  60% /
tmpfs           7.8G     0  7.8G   0% /dev/shm
/dev/sda1       976M   38M  888M   5% /boot
[root@jwxt log]# echo "" >mysqld.log
[root@jwxt log]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       291G   50G  226G  18% /
tmpfs           7.8G     0  7.8G   0% /dev/shm
/dev/sda1       976M   38M  888M   5% /boot

2.清楚tomcat同理  linux命令:echo "" >catalina.out

[root@jwxt logs]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       291G  167G  109G  61% /
tmpfs           7.8G     0  7.8G   0% /dev/shm
/dev/sda1       976M   38M  888M   5% /boot
[root@jwxt logs]# echo "" >catalina.out
[root@jwxt logs]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       291G  166G  111G  60% /
tmpfs           7.8G     0  7.8G   0% /dev/shm
/dev/sda1       976M   38M  888M   5% /boot

 如果上面代码没用,肯定是你没有切换到文件所在的目录,记得一定要切换到文件所在的目录才行!!!

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转载自blog.csdn.net/buyaopingbixiazai/article/details/86690343
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