/bin/bashif[ $# -ne2];thenecho"Please input exact two number arguments."exit1fiif[ $1-eq $2];thenecho"Number $1 and $2 are equal."elif[ $1-gt $2];thenecho"The greater is $1."elseecho"The greater is $2."fi 编写一个脚本,接收一个用户名作为参数,并判断其奇偶性。 [root@c7-...
read num if [ $num -gt 10 ]; then echo "输入的数字大于 10." else echo "输入的数字不大于 10." fi 这里的-gt是一个表达式,用来判断输入的数字是否大于 10,除了-gt,Bash 还提供了其他一些常用的比较运算符: -eq:等于(equal) -ne:不等于(not equal) -lt:小于(less than) -le:小于等于(less ...
/bin/bash -x # trouble: script to demonstrate common errors number=1 if [ $number = 1 ]; then echo "Number is equal to 1." else echo "Number is not equal to 1." fi 1. 2. 3. 4. 5. 6. 7. 8. 9. 上面的脚本执行之后,会输出每一行命令。 $ trouble + number=1 + '[' 1 ...
将AppleScript添加到Bash脚本 、 我有以下Bash脚本。 !#/bin/bash fscanx --pdf /scandata/Trust_Report if [ "$?" = "0" ]; then 我想运行以下AppleScript tell application "FileMaker Pro Advanced" activate show window "Trust Reports" do script "Scan Trust Report" end tell else say “It did...
-ne等しくなければ真not equal -ltより小なら真less than -le以下なら真less than or equal -gtより大なら真greater than -ge以上なら真greater than or equal 文字列の比較オプション 書式: 文字列△オプション△文字列 例: if [ "${hoge}" = "fuga" ];then ...
批处理(Batch):用户事先写一个Shell脚本(Script),其中有很多条命令,让Shell一次把这些命令执行完,而不必一条一条地敲命令,而由于 shell 本身就被看做是一种脚本语言,也有变量和流程控制语句,因此它具备的功能远比 windows 下的批处理要强大。 常用shell ...
declare -rx SCRIPT=${0##*/} # SCRIPT is the name of this script declare -rx who=”/usr/bin/who” # the who command - man 1 who declare -rx TMP=”/tmp/temp.$$” # TMP is a temporary file # Sanity Checks if test ! -x “$who” ; then ...
Bash, short for "Bourne Again SHell," is a powerful scripting language used in Unix-based operating systems. One of the fundamental 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...
if [[ ! " ${PART_OPTS[*]} " =~ " ${PART} " ]]; then echo -e "\e[41m PART:$PART 错误,目前仅支持 ${PART_OPTS[*]} \e[0m"; exit 99; fi 一行一行读文件 Read line by line in Bash script。 (${IN//;/ }):以;分隔的字符串 IN 转数组 ...
bash shell script 定义 bash bash是命令语言解释器。广泛用于各种gun/unix系统上的默认命令解释器。全程叫做“Bourne-Again SHell” shell shell是一个宏处理器,允许执行交互式或非交互式的命令。 scripting 脚本允许自动执行,否则会一个接一个命令交互执行。 什么是shell shell允许你通过命令与计算机交互,从而检索或存...