echo"Get return array: ${array_ret[*]}"index=0forvaluein${array_ret[*]};doecho"list[$index]=$value"let index+=1done 尽管bash-script提供了数组的专有形式,但使用上与带空格的字符串没有太大的差别。实际上,实参尚可以数组格式传入(当然也可以先整合为字符串),但返回值只能利用echo,返回字符串格...
GNU nano 2.2.6 File: /home/factorpad/bin/funscript if [[ "$yourpick" =~ [1-5] ]]; then if [[ $yourpick == 1 ]]; then printf "\n\tYou Selected 1. One moment please...\n" sleep 2s fun_status continue fi if [[ $yourpick == 2 ]]; then printf "\n\tYou selected 2...
Bash script很大程度上我们用来自动化程序的运行。既然是自动化,那肯定不能我们人工一条一条手打。这时候就需要用上循环,来避免一些重复性操作了。 for 最简单的for循环就是数字的for循环,比如从1遍历到100: sum=0fori in{1..100}doletsum+=idoneecho$sum 记得这里do一定要换行,要不然会syntax error。当然很...
alias cd.nginx="cd /usr/local/etc/nginx" alias ip="ifconfig | grep -oE 'inet.*netmask' | grep -oE '(\d+\.){3}\d+' | sed -n 2p" 还可以在 vscode 中安装 'code' 命令。 这样你就可以在命令行中快速用 vscode 打开项目。 code PROJECT 工具系列 # Fix `tree` chinese encode alias ...
a=5b=5# Incorrect syntaxif[$a=$b];thenecho'a is equal to b'fi# Output:# a is equal to b Bash Copy In this example, the script works, but it’s not correct. The ‘=’ operator is for string comparison, not numerical comparison. For numerical comparison, you should use ‘-eq’...
问if...then语句的分组命令，包括在一行中为shell/bash分配变量ENbash中的变量 <span style="display:...
constructs in Bash programming is the if statement. The if statement allows you to control the flow of your script based on specific conditions. In this article, we will delve into the intricacies of Bash if statements, exploring their syntax, various conditionals, and examples to illustrate ...
The then, else if (elif), and else are clauses to the if statement. What is the syntax of a Bash If Statement? In Bash, the if statement is part of the conditional constructs of the programming language. The if in a Bash script is a shell keyword that is used to test conditions ...
# A simple script to list files shopt -o -s nounset declare -i TOTAL=0 let “TOTAL=TTOAL+1” # not caught printf “%s/n” “$TOTAL” if [ $TTOAL -eq 0 ] ; then # caught printf “TOTAL is %s/n” “$TOTAL” fi “-o xtrace” 选项在执行命令前会显示每一个命令,这个命令执行...
Save and exit the file, and run the new script using one of the following command syntax: sh make_a_file.txt or ./make_a_file.txt or bash make_a_file.txt If an error occurs when executing the file, please continue to set the executable permissions for the script file you just wrote...