but any character or string can be used), and the-foption followed by a number to specify which field should be returned – that’s the position of the item you wish to get from the split string. Reusable Bash
在Bash脚本中,要删除尾随子串并且不区分大小写,可以使用字符串操作和正则表达式的结合。 以下是一个示例的Bash脚本代码: 代码语言:bash 复制 #!/bin/bashstring="Hello World"substring="world"# 将字符串转换为小写lowercase_string=${string,,}# 将子串转换为小写lowercase_substring=${substring,,}# 使用...
_upword() #@ USAGE: upword STRING { local word=$1 while [ -n "$word" ] ## loop until nothing is left in $word do to_upper "$word" _UPWORD=$_UPWORD$_UPR word=${word#?} ## remove the first character from $word done } upword() { _upword "$@" printf "%s\n" "$_UP...
Bash can be configured to be POSIX- conformant by default. OPTIONS In addition to the single-character shell options documented in the description of the set builtin command, bash inter- prets the following options when it is invoked: -c string If the -c option is present, then commands ...
例子 ./cidr-to-ip.sh [OPTION(only one)] [STRING/FILENAME] -h 显示此帮助屏幕 -f 在...
You can split strings in bash using theInternal Field Separator (IFS)and read command or you canuse the tr command. Let me show you how to do that with examples. Method 1: Split string using read command in Bash Here’s my sample script for splitting the stringusing read command: ...
基本操作: 1.先在gitee上创建项目仓库 2.从gitee上克隆项目到本地 3.把项目文件放到本地仓库 4.推送本地仓库文件到gitee 1.创建仓库 2.在本地磁盘上创建一个文件夹,cd+空格+文件夹目录 3.git clone https://gitee.com/你用户名/gitee上创建的库.git (此时本地文件夹下回出现gitee上创建的文件夹) 4....
2.2 Replacing All Occurrences of a Character Use Parameter Expansion 1 2 3 4 string="Words World" echo${string//r/_} OUTPUT 1 2 3 Wo_dsWo_ld This replaces all occurrences ofrwith_. It is similar to previous one, except that//indicates global replacement. This means it will replace al...
read is a bash built-in command that reads a line from the standard input (or from the file descriptor) and split into words.
The new interface receives additional # arguments $1 (command name), $2 (part of current word before the cursor), and # $3 (previous word) that are specified to the completion function by Bash. # When `-s` is specified, instead of variable `split`, the new interface sets # variable...