Support parameter transfer command

[opcache]

I want to define an interface that can execute any command. The executed command is passed through the shell parameter, such as curl 127.0.0.1:8080/get? shell="df -h"

[msoap]

@opcache you can use -form with variables like this:

shell2http -form / 'sh -c "$v_cmd"'

curl 'http://localhost:8080/?cmd=echo+123'

[opcache]

@opcache you can use -form with variables like this:

shell2http -form / 'sh -c "$v_cmd"'

curl 'http://localhost:8080/?cmd=echo+123'

Oh, Thank you so much！