fpSystem
Execute and feed command to system shell
Declaration
Source position: unix.pp line 116
function fpSystem(const Command: RawByteString) : cint;
Description
FpSystem invokes the bash shell (/bin/sh), and feeds it the command Command (using the -c option). The function then waits for the command to complete, and then returns the exit status of the command in wait(3) format, or 127 if it could not complete the FpFork or FpExecve calls. To convert the return value of fpsystem to the real return value use WEXITSTATUS() .
Errors
Errors are reported in (fpget)ErrNo
See also
| Name | Description |
|---|---|
| POpen | Pipe file to standard input/output of program |
| FpExecve | Execute process using environment |
| FpFork | Create child process |
Example
program example56;
uses Unix;
{ Program to demonstrate the Shell function }
Var S : Longint;
begin
Writeln ('Output of ls -l *.pp');
S:=fpSystem('ls -l *.pp');
Writeln ('Command exited wwith status : ',S);
end.