#!/bin/bash # 文件路径 file_path="/path/to/file.txt" # 使用for循环遍历文件中的每一行 for line in $(cat $file_path) do # 在这里可以使用IF语句进行条件判断 if [[ $line == "条件" ]]; then # 如果满足条件,则执行相应操作 echo "满足条件的行:$line" else # 如果不满足条件...
(4)case语句相当于switch,以case value in 分支用值加右括号表示,用两个分号;;表示跳出分支,末尾必须以esac结束,是case的倒序; 和Java、PHP等语言不一样,sh的流程控制不可为空,如(以下为PHP流程控制写法): <?php if (isset($_GET["q"])) { search(q); } else { // 不做任何事情 } 在sh/bash里...
Bonus: Bash if else statement in one line So far all the if else statement you saw were used in a proper bash script. That's the decent way of doing it but you are not obliged to it. When you just want to see the result in the shell itself, you may use the if else statements ...
'Else if'in bash scripting, often written as'elif', is used to check multiple conditions in your code. It is used with the syntax,if [firstStatement]; then... elif [secondCondition]; then... else. It’s a powerful tool that allows your scripts to make decisions based on various scen...
The Bash script uses conditional statements such as if, if-else, if-elif, and nested if to create conditional programs that execute based on the specified condition. You can also useif else in bash script inside for loop. Happy Shell scripting!
counter=$((counter+1))doneecho"until loop:"until[ $counter1 -gt $1];doecho$counter1 counter1=$((counter1+1))doneelseecho"error"fi
Bash脚本: While循环和if语句 while循环/切换语句 while循环多个语句 for循环和while循环-i linux下while循环语句 While循环打印else语句 VHDL中wait、infinite、while循环和for循环语句的综合 While循环和if/else语句无法正常工作 JavaScript IF语句和While循环无法正常工作 使用While循环和If语句对因子求和 奇数和偶数的Whi...
在sh/bash里可不能这么写,如果else分支没有语句执行,就不要写这个else。 if else if if 语句语法格式: if condition then command1 command2 ... commandN fi 1. 2. 3. 4. 5. 6. 7. 写成一行(适用于终端命令提示符): if [ $(ps -ef | grep -c "ssh") -gt 1 ]; then echo "true"; fi...
ifelse if if语句语法格式: ifcondition then command1 command2 ... commandN fi 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 写成一行(适用于终端命令提示符): if[$(ps-ef|grep-c"ssh")-gt1];thenecho"true";fi 1. 末尾的fi就是if倒过来拼写,后面还会遇到类似的。
不需要 bash 的基础,但也不适合编程入门者,需要有一定的其他编程语言经验 分享184 python学习吧 雷布斯猴 人工智能第一课:咱先会点儿Python 分享42 python吧 🎀☞千鹤☜🎀 大佬们请看这里: For i in range(2,101): For j in range(2,i): If i % j == 0: Break Else: Print(a) 这条语句...