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.
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.
open, creat, read, write, lseek and close
Are they all primitive?
:confused:
*Another Question: is there a different between a system call, and an i/o system call? (2 Replies)
Hi,
I'm new to UNIX system calls. Can someone share your knowledge as to how exactly system calls should be executed?
Can they be typed like commands such as mkdir on the terminal itself? Also, are there any websites which will show me an example of the output to expect when a system call like... (1 Reply)
Hello,
how would i be able to call ps in C programming?
thanks,
---------- Post updated at 01:39 AM ---------- Previous update was at 01:31 AM ----------
here's the complete system call, ps -o pid -p %d, getpit() (2 Replies)
Hi friends,
I have three questions.
1) What are system calls?
2) Is it necessary that system calls be in c language (in unix operating system)?
3) Importance of c language when programming in unix environment???
Looking forward to your wonderful replies!
... (2 Replies)
Hi friends,
I hope everyone is fine and doing well. I queried in my previous thread about the low-level qualities of C/C++ languages.I really thank you people for explaining, it was really helpful. One more ambiquity that I have in my mind is regarding the unix system calls like open, creat,... (1 Reply)
Discussion started by: gabam
1 Replies
LEARN ABOUT OSF1
dtadvfs
dtadvfs(8) System Manager's Manual dtadvfs(8)NAME
dtadvfs - Starts the AdvFS graphical user interface
SYNOPSIS
/usr/bin/X11/dtadvfs [options] [-N] [-C hostname]
OPTIONS
Turns off information messages about starting up the
asemgr utility. This message is displayed at startup and whenever the file system configuration is changed when the system is running
TruCluster Software. Connects to other hosts that are running the AdvFS GUI daemon, advfsd.
OPERANDS
Uses the standard X Windows options. See the X(1X) and xterm(1X) reference pages for information.
DESCRIPTION
The AdvFS graphical user interface (GUI) organizes AdvFS functionality into system management tasks and makes them available through a
graphical interface.
Issue the dtadvfs command to display the AdvFS GUI Main window. This window serves as both the starting point for all AdvFS GUI-managed
tasks and as a monitor for file-system status. When the Main window is displayed, disk-space usage information is shown for the host and
file domains.
From the Main window, you can choose tasks from the following menus: Choose GUI setup options or exit the GUI. Choose file domain, file-
set, clone, or volume configuration tasks. Choose what information displays on the main window or view devices and volumes information.
Choose file domain balance or defragment procedures.
Online help is available for all tasks and windows available through the GUI. To access help, click on the Help button in any window or
choose Help from the menu bar to display information.
RESTRICTIONS
You must be the root user to use this utility and you must register the Advanced File System Utilities license.
FILES
/Storage_Management/Dtadvfs
The indicator for graphic icons. The dtadvfs message log file. Remove or copy this log to another location periodically to prevent
the log from becoming too large. The AdvFS Manager user-interface executable file. The dtadvfs online help files. The dtadvfs X
resource file. The dtadvfs message catalogs. The GUI graphic icon files. The launch script for the graphic icons.
SEE ALSO advfs(4), advfsd(8), X(1X), xterm(1X)dtadvfs(8)