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[root@sso_4 sbin]# /sbin/service atd start
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[root@sso_4 logs]# rpm -q at
at-3.1.8-82.el4
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[root@sso_4 sbin]# /sbin/service atd status
atd (pid 6383) ÕýÔÚÔËÐÐ...
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´´½¨Ò»¸öÎļþ“nmon.sh”:
touch nmon.sh
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[root@xxx nmon]# more nmon.sh
#!/bin/sh
./nmon_x86_fedora5 -fT -s 10 -c 60
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[root@xxx nmon]# chmod +x nmon.sh
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[root@xxx nmon]# at 15:34
at> ./nmon.sh
at> <EOT>
job 6 at 2009-12-21 15:34
[root@xxx nmon]#
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http://en.wikipedia.org/wiki/Loop_device
In Unix-like operating systems, a loop device, vnd (vnode disk), or lofi (loopback file interface) is a pseudo-device that makes a file accessible as a block device.
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