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Full Discussion: Using C language to use system calls
Homework and Emergencies Homework & Coursework Questions Using C language to use system calls Post 302734303 by jim mcnamara on Wednesday 21st of November 2012 10:40:06 PM
Old 11-21-2012
That is just like writing a script, not calling system calls

find is based on the nftw() call and uses stat semantics - it returns among other things a struct stat.

To answer your question--
You should consider system(). It calls execl for you and then calls waitpid.

Code:
system("find . maxdepth 1 -perm 0644 ");

The reason to call syscalls directly in C instead of using execl() is to eliminate process creation which has a lot of overhead that you have in a shell script. system() and execl() are doing nothing you cannot do in a shell script in this case.
 

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LEARN ABOUT DEBIAN

tasksel

TASKSEL(8)						      Debian specific manpage							TASKSEL(8)

NAME

       tasksel - a user interface for installing tasks

SYNOPSIS

       tasksel install <task>

       tasksel remove <task>

       tasksel [options]

DESCRIPTION

       tasksel shows all available tasks and allows to user to select ones to install

OPTIONS

       -t, --test
	   test mode; don't actually install or remove packages

       --new-install
	   automatically select some tasks without even displaying them to the user; default other tasks to on; used during new Debian installs.

       --list-tasks
	   list on stdout the tasks that would be displayed in the tasksel interface

       --task-packages task
	   lists on stdout the packages that are available and part of the given task

	   Note that this option may be given more than once.

       --task-desc task
	   outputs the extended description of the given task

       --debconf-apt-progress options
	   Pass the specified options to the debconf-apt-progress command that tasksel runs.

SEE ALSO

       dpkg(8), apt-get(8)

FILES

       /usr/share/tasksel/*.desc and /usr/local/share/tasksel/*.desc are used to define tasks.

AUTHOR

       tasksel was written by Randolph Chung <tausq@debian.org> and Joey Hess <joeyh@debian.org>

HISTORY

       This document first appeared with tasksel-1.0

3.14.1								    2012-08-27								TASKSEL(8)
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