hi guys..
i have a shell script that loops through a certain directory to see if a file has been created and then prints the file if it exists...
the only problem i have now is that sometimes the flat does not get created by the program thats supposed to create it, in this scenario, my loop... (1 Reply)
Using a HTML page , i'm running a Unix ksh script with <a href=..>.
The script contains loop like this :
for i in
do
rsh.....
done
each rsh command is running quite long and then i would display results in HTML format but about 5mn my blank page waiting for result is running in error... (1 Reply)
having problems using scp in that during peak hours it appears to time out.
anyone have similar experiences? any thoughts regarding a solution... (1 Reply)
I need to make it so an autmated process which involves ssh, times out if ssh prompts for a password. Most of the time it shouldnt prompt for a password. But if it does i need it to time it out or get a status and stop the ssh and log that the ssh failed and move onto the next server. Is there any... (9 Replies)
hi everyone. If you have a function created in your code and you want to find out how long it takes for it to run you can use a struct called gettimeofday().
so lets say we have a function like this
int myfunction (int r)
{
/*some math calculations*/
return answer;
}
How do i set up... (3 Replies)
Hello there, I just needed to know how to get the timing right when using the gcc __builtin_prefetch() function, that is, how many instructions before the actual utilization of the data should I make the prefetch call.
I will be measuring the L1 cache hit rate with valgrind's cachegrind,... (3 Replies)
I have a Bash script where, in a loop, I access several urls.
Sometimes, if an url is not available, lynx hangs, and the script does not continue. How can I time out the lynx request when it takes more than, 10 Seconds, but continue with the other jobs...
For some reason lynx does not care... (1 Reply)
Hi all,
This is my first post.
I am new to unix scripting.
My requirement is as follows :
We are using a financial backoffice application.
Now at the end of day we have send users a status report stating all timings of EOD processes for all countries.
I need timings for following... (0 Replies)
I have two shell scripts, one written with xargs for parallel processing (p1) and the other written in old school way (p3) .
when I execute them, i get the below values.
$ time ./p1
real 0m25.36s
user 0m0.32s
sys 0m0.80s
$ time ./p3
real 0m23.25s
user 0m6.20s
sys ... (4 Replies)
I have noticed the difference in byte swap timing between two Ubuntu systems. The bswap_32 used to work just fine on the old system, but on the new one it lags behind home-grown swap.
My code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <byteswap.h>
#include... (4 Replies)
Discussion started by: migurus
4 Replies
LEARN ABOUT REDHAT
touch
TOUCH(1) User Commands TOUCH(1)NAME
touch - change file timestamps
SYNOPSIS
touch [OPTION]... FILE...
DESCRIPTION
Update the access and modification times of each FILE to the current time.
Mandatory arguments to long options are mandatory for short options too.
-a change only the access time
-B, --backward=SECONDS
Modify the time by going back SECONDS seconds. For example, touch -r foo -B 5 bar will make the file bar 5 seconds older than file
foo.
-c, --no-create
do not create any files
-d, --date=STRING
parse STRING and use it instead of current time
-F, --forward=SECONDS
Modify the time by going forward SECONDS seconds. For example, touch -r foo -F 5 bar will make the file bar 5 seconds newer than
file foo.
-f (ignored)
-m change only the modification time
-r, --reference=FILE
use this file's times instead of current time
-t STAMP
use [[CC]YY]MMDDhhmm[.ss] instead of current time
--time=WORD
set time given by WORD: access atime use (same as -a) modify mtime (same as -m)
--help display this help and exit
--version
output version information and exit
Note that the -d and -t options accept different time-date formats.
AUTHOR
Written by Paul Rubin, Arnold Robbins, Jim Kingdon, David MacKenzie, and Randy Smith.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for touch is maintained as a Texinfo manual. If the info and touch programs are properly installed at your site,
the command
info touch
should give you access to the complete manual.
touch (coreutils) 4.5.3 October 2002 TOUCH(1)