Write and run shell scripts

Write and run shell scripts-Linux general technology-Linux programming and kernel information. The following is a detailed description. [I = s] This post was last edited by tjwangzhen

Run the. sh script in Linux./bin/sh ^ M: bad interpreter: No such file or directory is abnormal.
Analysis: This is caused by different system encoding formats: the. sh file edited in windows may have invisible characters, so the preceding exception information is reported when executed in Linux.
Solution: 1) conversion in windows: use some editors, such as UltraEdit or EditPlus, to convert the script code before running it in Linux.
The conversion method is as follows (UltraEdit): File --> Conversions --> DOS-> UNIX.
2) conversion can also be performed in Linux: first ensure that the file has executable permissions # chmod a + x filename and then modify the file format
# Vi filename use the following command to view the file format: set ff or: set fileformat. you can see the following information: fileformat = dos or fileformat = unix use the following command to modify the file format: set ff = unix or: set fileformat = unix: wq (save disk exit) and then execute the file #. /filename

Compile and execute the. sh script
Gedit filename. sh
Save after writing
Change execution permission
Chmod a + x filename. sh
Then run./filename