Python学习之进程和并发
In : def multi(*args):.....: for cmd in args:
.....: p=subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE)
.....: out=p.stdout.read()
.....: print out
.....:
.....:
In : multi("df -h","ls -lh /tmp","tail -f /var/log/system.log")
tail: cannot open `/var/log/system.log' for reading: No such file or directory
Filesystem SizeUsed Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root6.7G1.7G4.6G28% /
tmpfs 1.9G 01.9G 0% /dev/shm
/dev/xvda1 485M 55M405M12% /boot
/dev/xvdb 99G 22G 73G23% /data
total 6.5M
-rw-r--r--.1 root root 18K May 28 17:55 a.txt
-rw-r--r--.1 caribbean operation52K Jul 23 12:00 baidu.html
-rw-r--r--.1 caribbean operation18K Aug1 16:11 b.txt
-rw-r--r--.1 daemon daemon 6.4M Aug1 14:36 php_errors.log
drwxr-xr-x. 11 root root 4.0K Jul 30 14:40 pip-build-root
-rw-r--r--.1 root root 0 Jul 31 14:39 send_msg_s1.txt
-rw-r--r--.1 root root 0 Jul 31 14:39 send_msg_s2.txt
-rw-r--r--.1 root root 0 Jul 31 14:39 send_msg_s3.txt
-rw-------.1 root root 0 Dec 172013 yum.log
-rw-------.1 root root 877 Jul 25 10:10 yum_save_tx-2014-07-25-10-10iJ0cju.yumtx
-rw-rw-rw-.1 mysql mysql 2.4K Jul 11 13:54 yunbaomysql2.txt
-rw-rw-rw-.1 mysql mysql 2.4K Jul 11 13:45 yunbaomysql.txt
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