我正在尝试通过cron发送电子邮件,以了解哪些进程正在占用我的服务器.它工作正常,但产生的电子邮件太窄,我需要了解更多有关该过程.
这是我正在使用的脚本(从这里偷走它：http://www.inmotionhosting.com/support/website/server-usage/create-server-load-monitoring-bash-script)：
#!/bin/bash
trigger=10.00
load=`cat /proc/loadavg | awk '{print $1}'`
response=`echo | awk -v T=$trigger -v L=$load 'BEGIN{if ( L > T){ print "greater"}}'`
if [[ $response = "greater" ]]
then
top -cSbn 1 | head -14 | tail -8 | mail -s"High load on server - [ $load ]" myemail@domain.com
fi
PID USER PR NI VIRT RES SHR S %cpu %MEM TIME+ COMMAND 810809 root 20 0 20700 13m 3032 R 50 0.0 0:00.40 /prod/process-nam 810802 root 20 0 20700 13m 3032 R 48 0.0 0:00.39 /prod/process-nam 810808 root 20 0 20708 13m 3032 S 48 0.0 0:00.35 /prod/process-nam 810803 root 20 0 20708 13m 3032 S 46 0.0 0:00.39 /prod/process-nam 810810 root 20 0 20168 13m 3028 R 46 0.0 0:00.33 /prod/process-nam 318723 www-data 20 0 146m 131m 3320 R 45 0.4 67:27.96 /home/server/pr 810800 root 20 0 20704 13m 3032 S 45 0.0 0:00.39 /prod/process-nam
如您所见,整个路径都缺失了.
但是,如果我从bash运行脚本,它可以工作,发送足够广泛的电子邮件.
这是一个ncurses问题吗？管邮件问题？
谢谢！
使用-w开关进行顶部.
原文链接：https://www.f2er.com/bash/385734.html-w :Output-width-override as: -w [ number ]
In 'Batch' mode,when used without an argument top
will format output using the COLUMNS= and LINES= envi‐
ronment variables,if set. Otherwise,width will be
fixed at the maximum 512 columns. With an argument,output width can be decreased or increased (up to 512)
but the number of rows is considered unlimited.
In normal display mode,when used without an argument
top will attempt to format output using the COLUMNS=
and LINES= environment variables,if set. With an
argument,output width can only be decreased,not
increased. Whether using environment variables or an
argument with -w,when not in 'Batch' mode actual ter‐
minal dimensions can never be exceeded.
Note: Without the use of this command-line option,output width is always based on the terminal at which
top was invoked whether or not in 'Batch' mode.
