Execl

Execute process (using argument list)

Declaration

Source position: line 0

procedure Execl(

const Todo: String

); procedure Execl(

const Todo: Ansistring

);

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 NOT searched in the path. The current environment is passed to the program. On success, execl 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).

Example

Program Example10;

{ Program to demonstrate the Execl function. }

Uses oldlinux, strings;

begin
  { Execute 'ls -l', with current environment. }
  { 'ls' is NOT looked for in PATH environment variable.}
  Execl ('/bin/ls -l');
end.

Notes

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