First we will open the.sh file using shell_exec(); function. Then, we will use shell_exec() to open the cmd interface and run a few windows commands. Run Shell File in Text Mode Using shell_exec() Function syntax and parameters: shell_exec(string $cmd);. This function returns shell output in the string format.

The syntax of shell_exec() is straightforward: string shell_exec (string $cmd) This function takes one parameter: $cmd, which is the command line you want to execute as a string. It returns the entire output as a string or NULL on an error or if the command does not yield an output.

It offers several functions to perform system level programming tasks. One such function is the exec () function. The exec () function is used in PHP to execute an external program or command and display the output. This function takes a command-line command and returns the last line of the output from the command.