#Check the number of arguments. If none are passed, print help and exit. NUMARGS=$# echo -e \\n"Number of arguments: $NUMARGS" if [ $NUMARGS -eq 0 ]; then HELP fi ### Start getopts code ### #Parse command line flags #如果选项需要后跟参数,在选项后面加":" #注意"-h"选项后面...
Used to expands the number of arguments passed to the script. $0 Used to expands to the name of the shell. $1, $2 Used as an input parameter that you can add when running script. exit [0-255] Used to exit the script and return the number from 0 to 255. $ Used for paramete...
-rw-r--r--. 1 BashShell BashShell 88 11月 6 2013 check-for-signed-integer -rw-r--r--. 1 BashShell BashShell 74 11月 6 2013 check-for-unsigned-integer -rw-r--r--. 1 BashShell BashShell 257 11月 6 2013 check-number-of-command-line-arguments -rw-r--r--. 1 BashShell Bash...
GNU Wget 是一个用于从 Web 下载文件的命令行应用程序。使用 Wget，你可以使用 HTTP、HTTPS 和 FTP ...
/bin/bash## Name: test-bucket-1## Purpose:# Performs the test-bucket number 1 for Product X.# (Actually, this is a sample shell script,# which invokes some system commands# to illustrate how to construct a Bash script)## Notes:# 1) The environment variable TEST_VAR must be set# (...
There are a number of ways to use ShellCheck! On the web Paste a shell script onhttps://www.shellcheck.netfor instant feedback. ShellCheck.netis always synchronized to the latest git commit, and is the easiest way to give ShellCheck a go. Tell your friends!
number=0 until [ "$number" -ge 10 ]; do echo "Number = $number" number=$((number + 1)) done上面例子中,只要变量number小于10,就会不断加1,直到number大于等于10,就退出循环。until的条件部分也可以是一个命令,表示在这个命令执行成功之前,不断重复尝试。until...
Useful for sampling, running randomized subsets of large test suites etc. random_number.sh - prints a random integer between two integer arguments (inclusive) random_string.sh - prints a random alphanumeric string of a given length shields_embed_logo.sh - base64 encodes a given icon file or...
When a function is executed, the shell script positional parameters are temporarily replaced inside a function for the function’s arguments and the special parameter # is updated to expand to the number of positional arguments for the function....
For "minimum()", if the first number is less than the second, it prints the first number as the minimum; otherwise, it prints the second number as the minimum.5.Power Function:Write a Bash script that defines a function called power which takes two numbers as arguments and prints the re...