06-19-2007
Sorry,
Even the touch command didnt serve my purpose;
The file I want to clear is always in use. Some program is appending it content always (even for each microseconds).
Any suggestions ?
10 More Discussions You Might Find Interesting
1. AIX
Hi
errclear seems not working on aix 4.3/rs6k, i can't clear HW error with errclear -d H 0 ??? what is wrong ?
thanks. (0 Replies)
Discussion started by: andryk
0 Replies
2. Shell Programming and Scripting
Hello,
I want to clear or modify a line of a file. It is possible by
cat filename | sed '3d'
for example. But If I want "3" to be a variable?
I can't do sed '$var d'
Help me please
Thank you very much (1 Reply)
Discussion started by: Nene
1 Replies
3. Linux
I have a log file on our system which fills up with lines that have been timestamped, as follows....
03/03/2008 10:56:06:815] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:06:820] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:07:003]... (2 Replies)
Discussion started by: davesimm
2 Replies
4. Shell Programming and Scripting
Hi,
How can i clear the contents of a file in perl? (1 Reply)
Discussion started by: chriss_58
1 Replies
5. Shell Programming and Scripting
Hello,
I have a script which creates a certain text file.
Whenever I call it, I need to recreate this file, because I have no need in the previous content.
So I thought to remove the file every time I call the script, and that way I am sure that the previous content will not interrupt me.... (2 Replies)
Discussion started by: shira
2 Replies
6. AIX
Dear Friends ,
From 'last' or 'lastlog' command , I can get the last login informations of the users . now as a system admin , If I want to delete the log information from this 'last' 'lastog' command , then is it possible to do ?
plz inform ... ... (1 Reply)
Discussion started by: shipon_97
1 Replies
7. Shell Programming and Scripting
Any help appreciated
Thanks
sample input:
> (extra spaces&tabs in here) test1 (extra spaces&tabs in here) 123.123.123.123 (extra spaces&tabs in here) abc (extra spaces&tabs in here) 123
---
< (extra spaces&tabs in... (3 Replies)
Discussion started by: goofist
3 Replies
8. Shell Programming and Scripting
Hi,
I have a script which will use an input.txt file as an input file.
I am providing data to this input file in the script and once the script is executed, I want to clear all the contents of this file as during the second time use of this script, I'll be appending the data in this input... (5 Replies)
Discussion started by: pat_pramod
5 Replies
9. Shell Programming and Scripting
proc get_view_rel_str { } {
set cc_view :] end]]
puts $cc_view
set a
puts $a
set a end]]
puts $a
set a
puts $a
set a
puts $a
set a
puts $a
}
get_view_rel_str
this is a script in tcl with clearcase view (1 Reply)
Discussion started by: Syed Imran
1 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I have a file with 15 fields seperated by '|'. The requirement is to clear the last 5 characters of the 14th field. modifications should be done to the original file .
Can some one help me in sorting this out. (2 Replies)
Discussion started by: sureshk_85
2 Replies
LEARN ABOUT NETBSD
ualarm
UALARM(3) BSD Library Functions Manual UALARM(3)
NAME
ualarm -- schedule signal after specified time
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
useconds_t
ualarm(useconds_t microseconds, useconds_t interval);
DESCRIPTION
This is a simplified interface to setitimer(2).
The ualarm() function waits a count of microseconds before asserting the terminating signal SIGALRM. System activity or time used in pro-
cessing the call may cause a slight delay.
If the interval argument is non-zero, the SIGALRM signal will be sent to the process every interval microseconds after the timer expires
(e.g. after microseconds microseconds have passed).
RETURN VALUES
When the signal has successfully been caught, ualarm() returns the amount of time left on the clock. The maximum number of microseconds
allowed is 2147483647. If there is an error setting the timer, ualarm() returns ((useconds_t) -1).
SEE ALSO
getitimer(2), setitimer(2), sigaction(2), sigsuspend(2), alarm(3), signal(3), sigvec(3), sleep(3), usleep(3)
STANDARDS
The ualarm() function conforms to IEEE Std 1003.1-2001 (``POSIX.1''). However, the later IEEE Std 1003.1-2008 (``POSIX.1'') revision removed
the function from the specification.
HISTORY
The ualarm() function appeared in 4.3BSD.
BSD
May 2, 2011 BSD