方法一:利用grep查找strA="long string"strB="string"result=$(echo $strA | grep "${strB}")if [[ "$result" != "" ]]then echo "包含"else ec Linux Shell grep 脚本 字符串 linux shell 字符串 包含 在Linux操作系统中,shell编程是一种非常重要的编程技能,它可以让用户通过命令行交互的方式与操...
echo "String is not empty" fi ``` 3. 判断两个字符串是否相等: ```shell if [ "$str1" = "$str2" ]; then echo "Strings are equal" fi ``` 4. 判断字符串是否包含某个子字符串: ```shell if [[ "$str" == *substring* ]]; then echo "String contains substring" fi ``` 除了以...
1. 判断shell里判断字符串是否包含某个字符 a. 可以用正则式匹配符号“=~” 举例:str="this is a string" 要想在判断str中是否含有"this"这个字符串,下面的语句是可行的 [[ $str =~ "this" ]] && echo "\$str contains this" [[ $str =~ "that" ]] || echo "\$str does NOT contain this"...
$ ./check_substr.sh "This is a test string" "test string" "This is a test string" contains "test string" $ ./check_substr.sh "This is a test string" "is a test" "This is a test string" contains "is a test" $ ./check_substr.sh "This is a test string" "isa test" "This...
The bash shell fully supports scripts written for sh, so the following forms are equivalent: $(command) `command` 把命令执行结果赋值给变量: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 right_now=$(date +"%x %r %z") 常量 代码语言:javascript 代码运行次数:0 运行 AI代码解释 RIGHT_NOW...
Linux 系统中采用Shell脚本、WiindowsServer系统中采用的是PowerShell脚本进行编写, 注意脚本会有一定更新建议通过下面的项目地址获取最新的脚本。 Github 项目地址: https://github.com/WeiyiGeek/SecOpsDev/blob/master/OS-%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F ,欢迎大家 Star 与 Fork 。 原文链接: 完整...
$ echo “This is a string” > temp.txt $ cat temp.txt This is a string “` 4. 管道命令 Linux命令行中可以使用管道符(|)将多个命令连接起来,以实现字符串的打印。例如,可以将echo命令的输出作为printf命令的输入来格式化打印字符串: “`
When working with the Linux command line, a common operation is checking if a string contains another substring. In this tutorial, we’ll look at several techniques to complete this task. First, we’ll review some shell built-in commands. Then, we’ll explore several tools that come pre-in...
如果是使用xshell,那么,客户端IP应该是192.168.123.1,因此,使用精确IP定义: ## hosts.allow This file contains access rules which are used to# allow or deny connections to network services that# either use the tcp_wrappers library or that have been# started through a tcp_wrappers-enabled xinetd.#...
* 远程调用Linux shell 命令 * * @author wei.Li by 14-9-2. */ public class LinuxStateForShell { public static final String CPU_MEM_SHELL = "top -b -n 1"; public static final String FILES_SHELL = "df -hl"; public static final String[] COMMANDS = {CPU_MEM_SHELL, FILES_SHELL};...