replace_array=("old_string1 new_string1" "old_string2 new_string2" "old_string3 new_string3") 接下来,使用循环遍历数组中的每个元素,并使用sed命令替换文件中的字符串。假设要替换的文件名为"file.txt",可以使用以下命令: 代码语言:bash 复制 for replace_string in "${replace_array[@]}"; do ol...
BASH:replace text in files by sed #!/bin/sh TAG="aa:1234\/" DST="aa\/" for a in `find . -name '*.txt' -type f` do c=`cat ${a} | grep ${TAG}` reg=".*${TAG}.*" if [[ "${c}" =~ $reg ]] ; then cat ${a} | sed "s/${TAG}/${DST}/g" fi done...
概念:bash提供了多个字符串替换函数,如replace()、substr()等,可以根据不同的需求选择合适的函数来替换字符串内容。 优势:提供了更多灵活的字符串替换方式。 应用场景:根据具体需求选择合适的字符串替换函数。 示例代码: 示例代码: 以上是在bash中用自己的内容替换字符串的几种方法。根据具体的需求和场景,选择合适的...
5. Find and Replace String Values inside Bash Shell Script Replace only first match ${string/pattern/replacement} It matches the pattern in the variable $string, and replace only the first match of the pattern with the replacement. $catfirstmatch.sh#! /bin/bash filename="bash.string.txt"ech...
In this article, we will explore different ways to replace characters in String in different scenarios such as replacing the first or all occurrences of a
/bin/bash # declare STRING variable STRING="Hello World" #print variable on a screen echo $STRING Navigate to a directory where your hello_world.sh is located and make the file executable: $ chmod +x hello_world.sh Now you are ready to execute your first bash script:...
" fi # 也可以在数组中运行 if [[ ${arr[*]} == *sub_string* ]]; then printf '%s\n' "sub_string is in array." fi使用case语句:case "$var" in *sub_string*) # Do stuff ;; *sub_string2*) # Do more stuff ;; *) # Else ;; esac...
Also used to find and replace text in a file(s). ⬆ ʀᴇᴛᴜʀɴ ᴛᴏ ᴛᴏᴩ B CommandDescription badblocks Search a disk partition for bad sectors. banner Used to print characters as a poster. basename Used to display filenames with directory or suffix. bash GNU ...
if [[ $var == *sub_string* ]]; then printf '%s\n' "sub_string is in var." fi # 反转(子串不在字符串中). if [[ $var != *sub_string* ]]; then printf '%s\n' "sub_string is not in var." fi # 也可以在数组中运行 if [[ ${arr[*]} == *sub_string* ]]; then ...
for i in "$@"; do [[ $i ]] && IFS=" " tmp_array["${i:- }"]=1 done printf '%s\n' "${!tmp_array[@]}" } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 用法示例: $ remove_array_dups 1 1 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 5 ...