linux-tutorial/codes/shell/demos/function/function-demo3.sh

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#!/usr/bin/env bash
runner() {
return 0
}
name=zp
paramsFunction() {
echo "函数第一个入参:$1"
echo "函数第二个入参:$2"
echo "传递到脚本的参数个数:$#"
echo "所有参数:"
printf "+ %s\n" "$*"
echo "脚本运行的当前进程 ID 号:$$"
echo "后台运行的最后一个进程的 ID 号:$!"
echo "所有参数:"
printf "+ %s\n" "$@"
echo "Shell 使用的当前选项:$-"
runner
echo "runner 函数的返回值:$?"
}
paramsFunction 1 "abc" "hello, \"zp\""
# Output:
# 函数第一个入参1
# 函数第二个入参abc
# 传递到脚本的参数个数3
# 所有参数:
# + 1 abc hello, "zp"
# 脚本运行的当前进程 ID 号26400
# 后台运行的最后一个进程的 ID 号:
# 所有参数:
# + 1
# + abc
# + hello, "zp"
# Shell 使用的当前选项hB
# runner 函数的返回值0