Shell judgment file and path

#!/bin/sh

Filepath= "/users/xxx"
Filename= "/users/xxx/xxx"

#这里的-x parameter determines whether $mypath exists and has executable permissions
if [!-X "$filePath"]; Then
mkdir "$filePath"
Fi

#这里的-D parameter to determine if $mypath exists
if [!-D "$filePath"]; Then
mkdir "$filePath"
Fi

#这里的-F parameter to determine if $myfile exists
if [!-F "$fileName"]; Then
Touch "$fileName"
Fi

#其他参数还有-n,-n is to determine whether a variable has a value
if [!-n "$myVar"]; Then
echo "$myVar is empty"
Exit 0
Fi

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Shell judgment file and path