The main advantage of using ‘else if’ in bash scripting is that it allows your scripts to handle multiple conditions, making them more flexible and powerful. However, it’s important to be aware of potential pitfalls. For instance, the order of your conditions matters. The script will execu...
问bash脚本中的If / Else语句问题EN<c:choose> <c:when test="${requestScope.newFlag== '1'...
在Bash中,可以使用循环命令来重复执行一系列的命令。常见的循环命令有for循环、while循环和until循环。 对于if分支之外的循环命令,可以使用while循环或者until循环来实现。下面是...
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bash shell if-statement while-loop m3u 我正在编写一个脚本来解析m3u文件。目标是检索变量标记和url。我用这个文件做了测试。 #!/bin/bash echo "name,tvg-id,tvg-name,tvg-country,group-title,languages,url" while IFS= read -r line; do tags_detect="$(echo "$line" | grep -Eo '^#EXTINF:')...
值为非零或者非空的时候,if语句是成立。 注:如果if语句只有一句,语句块可以直接写在冒号右侧,冒号不可缺少,如果不止一句,一个代码块的所有语句都要缩进,... 选择结构(ifif else、扩展if else) /* 顺序结构 ... 流程控制语句(if单个条件判断语句、两个条件判断if...else...、多个条件...
The then, else if (elif), and else are clauses to the if statement. What is the syntax of a Bash If Statement? In Bash, the if statement is part of the conditional constructs of the programming language. The if in a Bash script is a shell keyword that is used to test conditions ...
shell 用于在带for循环的if语句中使用grep的Bash脚本你不能把"嵌套在"中,如果你想给予ssh多行输入,...
语法GoTo line必要的line 参数可以是任意的行标签或行号。说明GoTo 只能跳到它所在过程中的行。注意 太多的GoTo语句,会使程序代码不容易阅读及调试。尽可能使用结构化控制语句(Do...Loop、For...Next、If...Then...Else、Select Case)。GoTo语句示例本示例使用 GoTo语句在一个过程内的...
1,条件语句if else if 示例代码: [root@squid-2 script]# cat #!/bin/bash echo "Please choose project:" echo "1:zhu 2:sha" read project_no if [ $project_no = "1" ];then echo "111111" elif [ $project_no = "2" ];then