上面例子中,只要用户输入的文件不存在,continue命令就会生效,直接进入下一轮循环(让用户重新输入文件名),不再执行后面的打印语句。 Bash 还提供了一个比较独特的指令:select。该结构主要用来生成简单的菜单。它的语法与for...in循环基本一致。
-ne0&&echo"ERROR: Copy from$serverhad problems, will not continue"&&exit10058done59forlshwin$(/usr/bin/find $DATADIR-typef-name'lshw-*-dump.json');do60/usr/bin/jq'.["product","vendor", "configuration"]'$lshw61done What are the changes?: Between lines 16-22, check if all the re...
The other numerical operator you should be aware of that you might not be familiar with is the modulus operator (%). The modulus operator returns theremainderafter integer division. In integer division if A / B = C, and A % B = D, then B * C + D = A. Let’s take a look at ...
if the script is interactive, if it works for you and if you think this is a nice feature, you can try to save the terminal content and restore it after execution;(译者注:不理解这一点是什么意思) 在屏幕中输出简单易理解的消息; 使用颜色或者特别的前缀区分错误和警告信息; 输出正常的内容到STD...
(using deflate orgzip)-K, --config FILE Read config from FILE--connect-timeout SECONDS Maximumtimeallowedforconnection-C, --continue-at OFFSET Resumed transfer OFFSET-b, --cookie STRING/FILE Read cookies from STRING/FILE (H)-c, --cookie-jar FILE Write cookies to FILE after operation (H)...
Bash “For” Loop Skip and Continue Even with Bash “for” loops, you can create a skip and continue the “for” loop. Imagine a case where you want to automate the script but you want to verify a given condition. You can skip and continue with the loop if the condition is satisfied...
If the ;; operator is used, no subsequent matches are attempted after the first pattern match. Using ;& in place of ;; causes execution to continue with the list associated with the next set of patterns. Using ;;& in place of ;; causes the shell to test the next pattern list in ...
To exit the program, pressCTRL+Cor add abreak statement. Conclusion After following the examples from this tutorial, you know the purpose of acontinuestatement and how to use it with loops in Bash scripting. Next, learn how to write aBash function....
fied, tab stops are set at those positions, and then continue with the same spacing as the last two. For example, -x9,17 will set tabs at positions 9, 17, 25, 33, etc. The default for n is 8. -X or --no-init
to increase the number of processes in front of it. The restriction can be raised for a particular user or all users. After this update, you will not find this error anymore. After updating the “nproc” value, try saving your file with CTrl+S and exit it with Ctrl+X to continue. ...