Execlp

Execute process (using argument list, environment; search path)

Declaration

Source position: line 0

Description

Replaces the currently running program with the program, specified in path. Path is split into a command and it's options. The executable in path is searched in the path, if it isn't an absolute filename. The current environment is passed to the program. On success, execlp does not return.

Errors

Errors are reported in LinuxError:

sys_eacces

File is not a regular file, or has no execute permission. A compononent of the path has no search permission.

sys_eperm

The file system is mounted noexec.

sys_e2big

Argument list too big.

sys_enoexec

The magic number in the file is incorrect.

sys_enoent

The file does not exist.

sys_enomem

Not enough memory for kernel, or to split command line.

sys_enotdir

A component of the path is not a directory.

sys_eloop

The path contains a circular reference (via symlinks).

See also

Example

Program Example12;

{ Program to demonstrate the Execlp function. }

Uses oldlinux, strings;

begin
  { Execute 'ls -l', with current environment. }
  { 'ls' is looked for in PATH environment variable.}
  { envp is defined in the system unit.}
  Execlp ('ls -l',envp);
end.