06-17-2013
Yes, I am using gawk.
---------- Post updated at 06:46 AM ---------- Previous update was at 06:43 AM ----------
GNU Awk 3.1.3
Last edited by random_thoughts; 06-19-2013 at 05:41 AM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I've encountered a problem with a perl and ksh script that totals a certain field in a text file. The computed total of the script is 295540304 but the expected is 297959288, a 2 million difference. The KSH script reads from bottom to top, and the discrepancy started on line 47 (1279th MAN... (1 Reply)
Discussion started by: rsf01
1 Replies
2. Shell Programming and Scripting
Guys, have any idea for the script like this? also to compute w/ decimal.
thanks
a=10
b=20
c=30
d=40
if a < b then ( a -b)*1024 = free space
b + (c -d) = total space
if a > b then (b / d)*1024 = cpu (3 Replies)
Discussion started by: kenshinhimura
3 Replies
3. Shell Programming and Scripting
Hi,
I use this script to compute compilation time several time to get system performance and compare different system:
#!/bin/sh
# measure the different between time before and
# after the compilation of benchmark
# Start at iteration 1
num=1
while
do
# Add one to the iteration... (3 Replies)
Discussion started by: zainab
3 Replies
4. Shell Programming and Scripting
Hi,
I have 2 arrays.
I have to compute symmetric difference!
@arr=qw(19205134 18630215 18453487 18416242 18338715 18227590 17698645);
@arr1=qw(18227590 18053561 17698645 16966777);
#The code which i used is this!
@union = @isect = @diff = ();
%union = %isect = ();
%count =... (3 Replies)
Discussion started by: vanitham
3 Replies
5. Web Development
I have a project to migrate my club's membership database from Access to web based using MySQL/PHP, but I have a problem I can't get my head around and would appreciate some help...
Background...
I want to be able to display each member's data on screen and add a Previous and Next button to move... (2 Replies)
Discussion started by: JerryHone
2 Replies
6. Shell Programming and Scripting
Hi Friends,
My input file is like this
chr1 100 200
chr1 300 330
chr1 2000 2000
chr1 5000 5000
chr2 7790 7890
chr2 8000 8000
If the difference of third and second columns is zero, then subtract 500 from second column and add 500 to the third column.
So, my output would be
chr1... (1 Reply)
Discussion started by: jacobs.smith
1 Replies
7. UNIX for Advanced & Expert Users
I frequently use awk time functions and am switching some scripts over to mawk. I don't have the mktime or strftime functions in mawk, but it appears that there is a way, as explained here in "Time functions":
Please only cut-and-past links to man pages from our man pages.
So, simple... (10 Replies)
Discussion started by: treesloth
10 Replies
8. Shell Programming and Scripting
I'm trying to use AWK to filter on some dates in a field by converting them to Unix Time.
mktime(strftime(format,"6-FEB-2013 08:50:03.841")What is the proper format for my date strings as they appear in my database?
My first thought is %d-%b-%Y %H:%M:%Sbut I see the following issues:
%d is... (3 Replies)
Discussion started by: Michael Stora
3 Replies
9. UNIX for Beginners Questions & Answers
Hello,
sorry if this is an easy thing, but I tried to make it run the whole morning, but it doesn't work so far...
I am logged in on a visualization node of a high performance cluster. On this node I can run several gui-based software for the postprocessing of my cfd-data.
As the... (1 Reply)
Discussion started by: Shlaeae
1 Replies
10. Shell Programming and Scripting
Hello all, I am working on a file like below:
site Date time value1 value2
0023 2014-01-01 00:00 32.0 23.7
0023 2014-01-01 01:00 38.0 29.9
0023 2014-01-01 02:00 85.0 26.6
0023 2014-01-01 03:00 34.0 25.3
0023 2014-01-01 04:00 37.0 23.8
0023 2014-01-01 05:00 80.0 20.3
0023 2014-01-01 06:00... (16 Replies)
Discussion started by: kathy wang
16 Replies
LEARN ABOUT XFREE86
truncate
TRUNCATE(1) User Commands TRUNCATE(1)
NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (pow-
ers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
dd(1), truncate(2), ftruncate(2)
Full documentation at: <http://www.gnu.org/software/coreutils/truncate>
or available locally via: info '(coreutils) truncate invocation'
GNU coreutils 8.28 January 2018 TRUNCATE(1)