10-21-2011
Could you give some example output for your example input?
This User Gave Thanks to CarloM For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I'm new to perl,
My requirement is to check if particular file exists.
e.g. filename.txt, filename1.txt, filename2.txt etc
I tried the below code:-
my $var1 = "filename.txt"
if ( -e ($var1 = ~ /file\w/))
{
print "File found \n";
}
else
{ print "File not found \n";
}
... (0 Replies)
Discussion started by: doitnow
0 Replies
2. UNIX for Advanced & Expert Users
hi everybody,
i have a file, in it I need to extract some data that follows a particular pattern..
For example: my file contains like
now running Speak225
sep 22 mon 16:34:05 2008
--------------------------------
... (4 Replies)
Discussion started by: mohkris
4 Replies
3. Programming
Hi,
I have large files with fixed length fields or fields seperated by delimeter. I would like to do validation on some or all fields to check for numeric or date or characters etc.. I would like to write this in C++. Please let me know if any one have any ideas on this.
Thanks for all... (2 Replies)
Discussion started by: rameshmelam
2 Replies
4. Shell Programming and Scripting
Hi All ,
I need to extract the strings that are matching with the pattern : CUST.<AnyStringOfAnyLength>.<AnyStringOfAnyLength> from a file and then write all these string into another file.
e.g. If a file SOURCE contains following lines :
IF(CUST.ABCD.EFGH==1) THEN
CUST.ABCD.EFGH =... (7 Replies)
Discussion started by: swapnil.nawale
7 Replies
5. Shell Programming and Scripting
I have a huge file that has roughly 30304 lines. I need to extract specific info from that file. For example,
Box 1 > *aaaaaaaajjjj*
> hbbvjvj
> jdnnfddllll
> *dgdfhfekwjh*
Box 2 > *aaaaaaa'aj'jjj*
> dse hkjuejef bfdw
> dyeee
> dsewq
> *dgdfhfekwjh*
>feweiuei
Box 3 > *aaaa"aaaaj"jjj*
>... (25 Replies)
Discussion started by: Ernst
25 Replies
6. Shell Programming and Scripting
Hi,
file -> temp.txt
cat temp.txt
/home/pradeep/123/a_asp.html
/home/pradeep/123/a_asp1.html
/home/pradeep/435/a_asp2.html
/home/pradeep/arun/abc/a_dfr.html
/home/pradeep/arun/123/a_kir.html
/home/pradeep/123/arun/a_dir.html
....
....
..
i need to get a_*.html(bolded strings... (4 Replies)
Discussion started by: pradebban
4 Replies
7. Shell Programming and Scripting
Hi ,
I am writing a shell script to check pvsizes in linux box.
# for i in `cat vgs1`
> do
> echo "########### $i ###########"
> pvs|grep -i $i|awk '{print $2,$1,$5}'>pvs_$i
> pvs|grep -i $i|awk '{print $1}'|while read a
> do
> fdisk -l $a|head -2|tail -1|awk '{print $2,$3}'>pvs_$i1
>... (3 Replies)
Discussion started by: nanduri
3 Replies
8. Shell Programming and Scripting
Hi
I need to do a patten match between files .
I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time.
Main issue is that I need to search the pattern from... (2 Replies)
Discussion started by: nitin_daharwal
2 Replies
9. Shell Programming and Scripting
Hi ,
I have a situation where I need to search an xml file for the presence of a tag
<FollowOnFrom> and also , presence of partial part of the following tag <ContractRequest _LoadId and if these 2 exist ,then
extract the value from the following tag <_LocalId> which is
"CW2094139". There... (2 Replies)
Discussion started by: paul1234
2 Replies
10. UNIX for Beginners Questions & Answers
Hello all, I can get close to what I am looking for but cannot seem to hit it exactly and was wondering if I could get your help.
I have the following sample from textfile with many thousands of lines: File 1
PS001,001 HLK
PS002,004 L<G
PS004,002 XNN
PS004,006 BVX
PS004,006 ZBX=... (7 Replies)
Discussion started by: jvoot
7 Replies
LEARN ABOUT MINIX
pgmedge
pgmedge(1) General Commands Manual pgmedge(1)
NAME
pgmedge - edge-detect a portable graymap
SYNOPSIS
pgmedge [pgmfile]
DESCRIPTION
Reads a portable graymap as input. Outlines the edges, and writes a portable graymap as output. Piping the result through pgmtopbm
-threshold and playing with the threshold value will give a bitmap of the edges.
The edge detection technique used is to take the Pythagorean sum of two Sobel gradient operators at 90 degrees to each other. For more
details see "Digital Image Processing" by Gonzalez and Wintz, chapter 7.
The maxval of the output is the same as the maxval of the input The effect is better with larger maxvals, so you may want to increase the
maxval of the input by running it through pnmdepth first.
SEE ALSO
pgmenhance(1), pgmtopbm(1), pnmdepth(1), pgm(5), pbm(5)
AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
04 February 1990 pgmedge(1)