2014 the title of script.sh in the linux0218-4 of Ma Brothers

Although this problem is not very difficult, but if the programming is not proficient, there are some challenges. Here thanks to my search for this friend, his problem-solving code to me a lot of reference, his blog is: http://sohudrgon.blog.51cto.com/3088108/1586780/

Write a script that accomplishes the following, using the following form:

script.sh {Start|stop|restart|status}

which

If the argument is empty, the Help information is displayed and the script exits;

If the argument is start, the file/var/lock/subsys/script is created and the starting script successfully is displayed.

If the parameter is stop, the file/var/lock/subsys/script is deleted and the stop script successfully is displayed.

If the parameter is restart, the file/var/lock/subsys/script is deleted and recreated, and then the restarting script successfully is displayed.

If the parameter is status, then:

If the file/var/lock/subsys/script exists, "script is running ..." is displayed, otherwise "script is stopped."

#!/bin/bash

#

Shname= ' basename

Filename= "/var/lock/subsys/$shName"

If [$#-ne 1];then

echo "Usage: $shName {start|stop|restart|status}"

echo "Please try again."

Exit 3

Fi

If ["$" = = "Start"];then

if! [-E $fileName];then

Touch $fileName && echo "Starting $fileName successfully."

Else

echo "$fileName already exists, try again." && Exit 4

Fi

elif ["$" = = "Stop"];then

If [-e $fileName];then

RM-FV $fileName && echo "Stop $fileName successfully."

Else

echo "$fileName does not exist, try again." && Exit 4

Fi

elif ["$" = = "Restart"];then

If [-e $fileName];then

RM-FV $fileName

Touch $fileName && echo "Restarting $fileName successfully."

Else

Touch $fileName

echo "Restarting $fileName successfully."

Fi

elif ["$" = = "Status"];then

If [-e $fileName];then

echo "$shName is running."

Else

echo "$shName is stopped."

Fi

Else

echo "Usage: $shName {start|stop|restart|status}"

echo "Please try again."

Exit 3

Fi

2014 the title of script.sh in the linux0218-4 of Ma Brothers