聲明: 雖然還不懂鎖, 但:本寶寶(づ。◕‿‿◕。)づ萌萌噠
當一個任務執行中未完成時,如何避免重複執行該任務?_?
當然是鎖嘍 哇咔咔(*@ο@*) ~
root@xiayutian:/webroot/xiayutian
▶ tail t.sh
#!/bin/sh/usr/bin/flock -w0 /tmp/ian_t1.lock -c 'nohup sh /webroot/xiayutian/t1.sh >> /webroot/xiayutian/t1.log 2>&1 &'
nohup sh /webroot/xiayutian/t2.sh >> /webroot/xiayutian/t2.log 2>&1 &
#nohup sh /webroot/xiayutian/t3.sh >> /webroot/xiayutian/t3.log 2>&1 &
#nohup sh /webroot/xiayutian/t4.sh >> /webroot/xiayutian/t4.log 2>&1 &
#nohup sh /webroot/xiayutian/t5.sh >> /webroot/xiayutian/t5.log 2>&1 &
鎖: /tmp/ian_t1.lock [這·(*Φ皿Φ*)什麼鬼]
root@xiayutian:/webroot/xiayutian
▶ sh /webroot/xiayutian/t.sh;sh /webroot/xiayutian/t.sh
猜猜猜什麼結果(ˇˍˇ) 想~~~
root@gtaalpha:/webroot/ian_test
▶ more t1.log t2.log
::::::::::::::
t1.log
::::::::::::::2019-04-16 08:59:52
0
1
...O(∩_∩)O~~
99998
999999
hello
2019-04-16 08:59:58
::::::::::::::
t2.log
::::::::::::::2019-04-16 08:59:52
0
1
.../(ㄒoㄒ)/~~
1237
1238
2019-04-16 08:59:52
1239
.../(ㄒoㄒ)/~~
1243
0
1244
1245
1
1246
2
1247
3
1248
.../(ㄒoㄒ)/~~
81320
481321
2019-04-16 08:59:55
481322
.../(ㄒoㄒ)/~~
499999
world
2019-04-16 08:59:55
Wow喔~
鎖操作下的t1完美~\(≧▽≦)/~啦啦啦
沒有鎖的t2產生的log 簡直是夠夠U•ェ•*U~啦啦啦
(⊙v⊙)嗯嗯嗯
就醬