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
_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 _REPEAT=${_REPEAT:0:$2} ## Trim to desired length } repeat() { ...
# 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 ...
When no array variable name is provided to the mapfile command, the input will be stored into the $MAPFILE variable. Note that the mapfile command will split by default on newlines character but will preserve it in the array values, you can remove the trailing delimiter using the -t ...
split() { # Usage: split "string" "delimiter" IFS=$'\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...
echo "Why doesn't this string \n split on two lines?" # 上边这句的\n将被打印出来. 达不到换行的目的. # 让我们再试试其他方法. echo echo $"A line of text containing a linefeed." # 打印出两个独立的行(嵌入换行成功了). # 但是, 是否必须有"$"作为变量前缀?
$split"hello---world---my---name---is---john""---"hello world my name is john 将字符串转换为小写 警告:需要bash4+以上的版本 示例函数: lower() {# Usage: lower "string"printf'%s\n'"${1,,}"} 示例用法: $lower"HELLO"hello$lower"HeLlO"hello$lower"hello"hello...
read is a bash built-in command that reads a line from the standard input (or from the file descriptor) and split into words.
This is an alternative to sed, awk, perl and other tools. The function below works by finding all leading and trailing white-space and removing it from the start and end of the string. The : built-in is used in place of a temporary variable....
Bash can be configured to be POSIX- conformant by default. OPTIONS In addition to the single-character shell options documented in the description of the set builtin command, bash inter- prets the following options when it is invoked: -c string If the -c option is present, then commands ...