PHP
·
发表于 5年以前
·
阅读量：8283
#!/bin/bash
# testing the exit status of a function
func1() {
echo "Trying to display a non-existent file"
ls -l badfile
}
#由于最后一条命令未执行成功，返回的状态码非0
echo "testing the function"
func1
echo "The exit status is : $?"
func2() {
ls -l badfile
echo "Another test to display a non-existent file"
}
#由于最后一条命令echo执行成功，返回的状态码为0
echo "Another test"
func2
echo "The exit status is : $?"