linux shell 输出helloworld

ECS信息

• 规格：2vCPUs | 4GiB | kc1.large.2
• 镜像：openEuler 20.03 64bit with ARM | 公共镜像

linux shell 输出helloworld

shell 输出helloworld

# vim hello.sh

#!/bin/bash
echo 'hello world'
echo 'hello'

# bash hello.sh
hello world
hello

command not found 与 Permission denied

• 当前工作目录不在PATH变量中，所以command not found

# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

# pwd
/home

# hello.sh
-bash: hello.sh: command not found

• 没有执行权限，所以Permission denied

# ./hello.sh
-bash: ./hello.sh: Permission denied

# ll
total 4.0K
-rw------- 1 root root 44 Oct  3 16:39 hello.sh
# chmod u+x hello.sh
# ll
total 4.0K
-rwx------ 1 root root 44 Oct  3 16:39 hello.sh

# ./hello.sh
hello world
hello

学习资料

• 弹性云服务器 ECS
• openEuler-官网
• openEuler-B站
• openEuler-慕课
• openEuler-文档
• 鲲鹏社区

欢迎各位同学一起来交流学习心得^_^