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2021-11-24 16:59:01
45KB
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Shell脚本高级编程教程，希望对你有所帮助。
Example 10-23. Using continue N in an actual task：
1 # Albert Reiner gives an example of how to use "continue N":
2 # ---------------------------------------------------------
3
4 # Suppose I have a large number of jobs that need to be run, with
5 #+ any data that is to be treated in files of a given name pattern in a
6 #+ directory. There are several machines that access this directory, and
7 #+ I want to distribute the work over these different boxen. Then I
8 #+ usually nohup something like the following on every box:
9
10 while true
11 do
12 for n in .iso.*
13 do
14 [ "$n" = ".iso.opts" ] && continue
15 beta=${n#.iso.}
16 [ -r .Iso.$beta ] && continue
17 [ -r .lock.$beta ] && sleep 10 && continue
18 lockfile -r0 .lock.$beta || continue
19 echo -n "$beta: " `date`
20 run-isotherm $beta
21 date
22 ls -alF .Iso.$beta
23 [ -r .Iso.$beta ] && rm -f .lock.$beta
24 continue 2
25 done
26 break
27 done
28
29 # The details, in particular the sleep N, are particular to my
30 #+ application, but the general pattern is:
31
32 while true
33 do
34 for job in {pattern}
35 do
36 {job already done or running} && continue
37 {mark job as running, do job, mark job as done}
38 continue 2
39 done
40 break # Or something like `sleep 600' to avoid termination.
41 done
42
43 # This way the script will stop only when there are no more jobs to do
44 #+ (including jobs that were added during runtime). Through the use
45 #+ of appropriate lockfiles it can be run on several machines
46 #+ concurrently without duplication of calculations [which run a couple
47 #+ of hours in my case, so I really want to avoid this]. Also, as search
48 #+ always starts again from the beginning, one can encode priorities in
49 #+ the file names. Of course, one could also do this without `continue
2021-11-23 12:41:33
2.74MB
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需要自己先安装jdk，也可以去这里https://download.csdn.net/download/weixin_44033210/12657718，这里有自动安装jdk的脚本
2021-11-17 09:21:55
7KB
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安装jdk1.8，直接使用这个脚本，需要vim 安装jdk.sh，然后按Esc进入一般模式，使用 :set ff=unix 然后按Enter，然后按Esc，输入:wq 然后使用./安装jdk.sh,然后使用source /etc/profile
2021-11-17 09:20:44
604B
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本资源是为shell脚本的学员和系统管理员提供的学习进阶资料，里面包含资料和方法都比较全，并且还有网页版的分类说明，同志们可以用来学习和作为样例库。
2021-11-12 14:08:03
1.4MB
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