regex(){# Usage:regex"string""regex"[[$1=~$2]]&&printf'%s\n'"${BASH_REMATCH[1]}"} 示例用法: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 $ # Trim leading white-space.$ regex' hello''^\s*(.*)'hello $ # Validate a hex color.$ regex"#FFFFFF"'^(#?([a-fA-F0-9]{...
accordingly (as in regex(3)). The return value is 0 if the string matches the pattern, and 1 otherwise. If the regular expression is syntactically incorrect, the conditional expression’s return value is 2. If the shell option nocasematch is enabled, the match is performed without regard t...
if [[ "$config" =~ $WorkingDirPattern ]]; then WorkingDir="${BASH_REMATCH[1]}" # get the contents of the first capture group echo "WorkingDir is $WorkingDir" else echo "No WorkingDir found" >&2 fi 本站已为你智能检索到如下内容,以供参考: 🐻 相关问答7个 1、regex lookback中的...
The return value is 0 if the string matches the pattern, and 1 otherwise. If the regular expression is syntactically incorrect, the conditional expression's return value is 2. If the shell option nocasematch is enabled, the match is performed without regard to the case of alphabetic ...
[[$str=~ 200[0-5]+ ]] &&echo"regex_matched" 一旦Bash 解释器执行了一个正则表达式匹配,它通常会将所有匹配结果存储在 BASH_REMATCH shell 变量中。这个变量是一个只读数组,并将整个匹配的数据存储在第一个索引中。如果使用子模式,则 Bash 会逐步将这些匹配项存储在其他索引中: ...
else echo "The string does not match the regex pattern." fi 4. 在字符串比较中使用引号来处理包含空格的字符串 当字符串中包含空格时,必须使用引号将字符串括起来,以避免空格导致的分割问题。 示例: bash #!/bin/bash string1="hello world" string2="hello" if [ "$string1" != "$string2" ]...
regex(){# Usage: regex "string" "regex"[[$1=~$2]]&&printf'%s\n'"${BASH_REMATCH[1]}"} 示例 $ regex "Hello, World!" "(Hello), (World)!" Hello $ regex "Hello, World!" "(HelloE), (World)!" 函数的输入参数如下: $1:需要应用正则表达式的字符串; ...
使用String.matches方法判断是否包含子串,注意正则表达式元字符的转义 boolean matches(String regex) Tells whether or not this string matches the given regular expression. if (str.matches(".*"+sub+".*")) { // do something } StringUtils.contains ...
通过使用Matcher#find()和"name":"[^\s"]+"模式转向部分匹配是有意义的: //String text = "[{\"id\": 12,\"name\":\"to\",\"gender\":\"male\"}"; // => There is a matchString text = "[{\"id\": 12, 如何判断连续字符串?
通常，的语法为expr：expr match "$string" "$lead"要么：expr "$string" : "$lead"$lead正则...