Taken fromBash shell script split array: 从Bash shell脚本拆分数组: IN="bla@some.com;john@home.com" arrIN=(${IN//;/ }) Explanation: 解释: This construction replaces all occurrences of';'(the initial//means global replace) in the stringINwith' '(a single space), then interprets the s...
_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:$2} ## Trim to desired length } repeat() { ...
string="first second third fourth" IFS=' ' read -ra arr <<< "$string" echo "The last element is: ${arr[-1]}" Output 1 2 3 The last element is: fourth The IFS variable is used with a space delimiter to split the string in the above example. And the read command is used ...
string1=$"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 ...
原因:shell 以string 的形式读取mv {} $(basename {} .mp3).pcm的时候{}最先被替换了命令变为了mv lmy.mp3 $(basename lmy.mp3 .mp3).pcm这个时候再执行就正确了. 但是文件名有space肯定是错误的 ls *.mp3|xargs -n1 -I{} sh -c 'mv {} ${{}/mp3/pcm}' ...
是指使用BASH脚本语言来比较和合并包含数据的.csv文件中的某一列。 BASH是一种常用的Unix/Linux操作系统的命令行解释器和脚本语言,它提供了丰富的命令和功能,可以用于处理文本文件、执行系统命令等。 在合并一列时,我们可以使用BASH脚本来读取和解析.csv文件,然后比较指定列的数据,并根据比较结果进行合并操作。以下是...
split() { # Usage: split "string" "delimiter" IFS=$'\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...
In the bash script below, theechocommand pipes the string variable,$addrs, to thetrcommand, which splits the string variable on a delimiter,-. Once the string has been split, the values are assigned to theIPvariable. Then, theforloop loops through the$IPvariable and prints out all the ...
Example 7: Split the String Using the Set Command with Variable Create a Bash file with the following script that splits the string value based on the space using the “set – variable” command. The split values are printed later.