07-22-2002
Directory updation Notification?
Hi,
I'm a UNIX newbie .. so forgive me if this question sounds dumb.
Is it possible for Unix to notify a process that a particular directory has been updated? Rather that the process constantly polling the directory ...
Awaiting your replies ..
Thanks,
VJ
10 More Discussions You Might Find Interesting
1. Linux
Hi All,
I already have gcc complier installed in my machine.
Its version is : gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
I am not sure whethere it's is latest gcc version available. I want to update my gcc version. Can anyone please suggest me what is the latest and stable gcc... (1 Reply)
Discussion started by: bisla.yogender
1 Replies
2. UNIX for Advanced & Expert Users
Hello experts,
I have a requirement of notifying my application everytime a network interface is brought up. My application supports Various Unix flavours e.g. RHEL, SLES, AIX, Solaris and Mac OS. I know that SLES supports /etc/sysconfig/network/if-up.d hook scripts that run once an interface is... (2 Replies)
Discussion started by: GajendraSharma
2 Replies
3. Red Hat
Hi All,
I have a RPM for an Java based application. Currently it works fine.
But recently I want to implement that when newer packages gets installed over the older one, the rpm should only update the older files with the newer one (I know this could be done by rpm -Uvh xxx.rpm), but it... (0 Replies)
Discussion started by: jw_amp
0 Replies
4. AIX
Hi,
We have recently implemented 'quota' concept for the unix users.
softlimit - 230MB
hardlimit - 250MB
We have applied the quota when few of users are more than the hardlimit,issue is that even though the users cleared the space, still its 'quota' was not updating properly.
For some... (0 Replies)
Discussion started by: girish_satyam
0 Replies
5. Shell Programming and Scripting
Dear All,
Pls help me on this issue.
i want to write a script to check whether files updation happening in cuttent time or not.
i have set of files in directory which wil update in time basis..
Requirement: If the files are updating in system time i just want to print "files are... (6 Replies)
Discussion started by: steve2216
6 Replies
6. Shell Programming and Scripting
Hi All,
Can anyone help to write the script to check files updation?
i have files as mentioned below. which will be updated some time.
i just want to check the last file is updating the data for last 15 mins or not.
if its not updating i want to print NOT OK. if its updating data i want... (1 Reply)
Discussion started by: steve2216
1 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
I'm a newbie in Linux Programming.:)
Got some 500 processes running and I have around 20-30 logs updating for every 2mins on a server. The logs which i'm referring usually contains book name,run ids(not PID's),process name etc etc.
I'm interested in finding out whether some particular... (1 Reply)
Discussion started by: Nand Kishor
1 Replies
8. Shell Programming and Scripting
Hello All,
I need to update my .cfg file which is used in the script for almost all runs.
myfile.cfg file:
var=1
var1=1
run=0
script:
#! /bin/sh
. /mydir/myfile.cfg
echo $var"\t" $var1
exit
So, the requirement is that the myfile.cfg should update every time I run the... (10 Replies)
Discussion started by: PikK45
10 Replies
9. Shell Programming and Scripting
Hi,
I have the shell script requirement mentioned below :
List all java and c files or all files in directory and sub directories' in folder structure in current dir.
then search for pattren1 in all files globally and replace with other string .
And also check the date... (3 Replies)
Discussion started by: ammulu
3 Replies
10. UNIX for Dummies Questions & Answers
I have input file like Input.dat with below content
RRD 0Z91YUn000000Lk 9000100001 103020151117 STMT151117155527001 0000 2 000000 000004
RRD 0Z91YUn00000ysj 9000100001 103020151117 STMT151117155527001 0000 3 000000 000003
RRD 0Z91YUn00001vGh 9000100002... (12 Replies)
Discussion started by: PRAMOD 96
12 Replies
CHROOT(2) BSD System Calls Manual CHROOT(2)
NAME
chroot -- change root directory
SYNOPSIS
#include <unistd.h>
int
chroot(const char *dirname);
DESCRIPTION
Dirname is the address of the pathname of a directory, terminated by an ASCII NUL. Chroot() causes dirname to become the root directory,
that is, the starting point for path searches of pathnames beginning with '/'.
In order for a directory to become the root directory a process must have execute (search) access for that directory.
If the program is not currently running with an altered root directory, it should be noted that chroot() has no effect on the process's cur-
rent directory.
If the program is already running with an altered root directory, the process's current directory is changed to the same new root directory.
This prevents the current directory from being further up the directory tree than the altered root directory.
This call is restricted to the super-user.
RETURN VALUES
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate an error.
ERRORS
Chroot() will fail and the root directory will be unchanged if:
[ENOTDIR] A component of the path name is not a directory.
[ENAMETOOLONG] A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.
[ENOENT] The named directory does not exist.
[EACCES] Search permission is denied for any component of the path name.
[ELOOP] Too many symbolic links were encountered in translating the pathname.
[EFAULT] Path points outside the process's allocated address space.
[EIO] An I/O error occurred while reading from or writing to the file system.
SEE ALSO
chdir(2)
WARNINGS
There are ways for a root process to escape from the chroot jail.
HISTORY
The chroot() function call appeared in 4.2BSD.
4.2 Berkeley Distribution June 4, 1993 4.2 Berkeley Distribution