_repeat() { #@ USAGE: _repeat string number _REPEAT=$1 while (( ${#_REPEAT} < $2 )) ## Loop until string exceeds desired length do _REPEAT=$_REPEAT$_REPEAT$_REPEAT ## 3 seems to be the optimum number done _REPEA
split() { # Usage: split "string" "delimiter" IFS=$'\n' read -d "" -ra arr <<< "${1//$2/$'\n'}" printf '%s\n' "${arr[@]}" }示例用法:$ split "apples,oranges,pears,grapes" "," apples oranges pears grapes $ split "1, 2, 3, 4, 5" ", " 1 2 3 4 5 # 多...
string1=$"Yet another line of text containing a linefeed (maybe)." echo $string1 # 换行变成了空格.only one line exit 0 结果: root@ubuntu:~/resource/shell-study/0614-2013# ./test3.sh Why doesn't this string \n split on two lines? A line of text containing a linefeed. This strin...
split 把文件切割成多个零碎的部分 1.2、详细解析 1.2.1、ls 语法结构:ls [OPTION]… [FILE]… 其中OPTION表示选项,可以省略不用。FILE表示查看的文件,也可以省略,可以多个。这里 的文件表示的是广义的文件,可以是文本文件,目录文件或者其他特殊文件等。 常见选项以及含义: -a, --all:隐藏文件也会被列举出来 ...
$split"hello---world---my---name---is---john""---"hello world my name is john 将字符串转换为小写 警告:需要bash4+以上的版本 示例函数: lower() {# Usage: lower "string"printf'%s\n'"${1,,}"} 示例用法: $lower"HELLO"hello$lower"HeLlO"hello$lower"hello"hello...
IFS The Internal Field Separator that is used for word splitting after expansion and to split lines into words with the read builtin command. The default value is ``<space><tab><newline>''. IGNOREEOF Controls the action of an interactive shell on receipt of an EOF character as the sole ...
# Using awk to split a string into an arrayecho"Bash Array Of Strings"|awk'{split($0,a," "); print a[2]}'# Output:# 'Array' Bash Copy In this example, we used awk to split a string into an array. Thesplitfunction in awk divides the string into an arrayausing space as the ...
A great benefit of using Bash Arrays is to preserve field separation. Though, to keep that behavior, you must use double quotes as necessary. In absence of quoting, Bash will split the input into a list of words based on the $IFS value which by default contain spaces and tabs.[...
In this method, we’ll usesedwith its substitution option to convert a string into an array. To elaborate further, we’ll utilize the pattern-matching functionality ofsed. In addition, we’ll separate the array using the space character. Lastly, we’ll use a loop to iterate over the array...
The part that split the string is here: IFS=';' read -ra my_array <<< "$my_string" Let me explain it to you.IFS determines the delimiteron which you want to split the string. In my case, it’s a semi colon. It could be anything you want like space, tab, comma or even a ...