Linux Execution Shell script

1. Create Shell script:/home/test.sh

cd/home/

Vim tesh.sh #linux不区分后缀,. SH is only for user convenience;

The first line of the test.sh file defines the format: #!/bin/bash indicates that the file is executed with the bash shell;

Content to write casually, for example: Fdisk-l | grep ' DISK/DEV/SDA ' | awk ' {print $} ' #显示sda分区的大小

2, the way of implementation:

A, relative path (need to give execute permission): chmod u+x test.sh

Cd/home

./test.sh

B. Under absolute path

/home/test.sh

C, use bash, sh to execute, do not need to give execution permission

Bash test.sh

SH test.sh

Linux Execution Shell script