Hi,
I have a file, which is having a pattern "SEARCH" somewhere towards end of the file,
if i am giving " grep -i "SEARCH" $File" , it is taking too much time as file is very big.
So i want to search for the pattern from the back side of the file, how can we search for a pattern in bottom... (5 Replies)
hi,
I have looked at many grep threads and am unable to find something like this: please help.
I have a file which is generated from a report generator and i am trying to load a whole lot of specific data into a table for the users. One field is causing me problems.All the rest i can manage.... (7 Replies)
Hi Folks
I need a one liner to parse through a log and if the string is found print the line above, the line with the string and the line below.
example:
The ball is green and blue
Billy through the ball higer.
Jane got hurt with the ball.
So if I search for Billy I would need the 3... (1 Reply)
How to remove x lines form top and y lines form bottom.
This works, but like awk only cat file | head -n-y | awk 'NR>(x-1)'
so remove last 3 lines and 5 firstcat file | head -n-3 | awk 'NR>4' (5 Replies)
Oracle Linux 6.4
In a directory I have more than 300 files with the extension .log
I want the first 5 and last 5 lines of these .log files to be printed on screen with each file's name.
Expected output :
Printing first 5 and last 5 lines of FX_WT_Feb8_2014.log
!! Authentication... (7 Replies)
Hello forum,
Seems that only I have alot of questions regarding Ubuntu :D
In Ubuntu 12.04 LTS the gnome I have been using gdm and lightdm.
In lightdm the top and side bars are aka "unity" and can be removed using apt-get remove unity
I need to do the same for menu bars gdm. I do not... (0 Replies)
Hi,
i have a file which contains PID and wanted to execute kill command. but the thing is, when killing PID's needs to kill PID from bottom to top.
Please help
INPUT
21414 sh -c extract.ksh ASA
21416 /bin/ksh extract.ksh ASA
21428 /usr/bin/perl -w /var/tmp/tempperl.21416 ASA... (4 Replies)
Dear All
I was wondering if someone could help me in resolving an issue.
I have a file like this:
column1 column2
2 4
3 5
8 9
0 12
0 0
0 0
9 0
87 0
1 0
1 0
1 0
4 0 (2 Replies)
Hi,
I have a requirement where I need to delete given number of top and bottom rows in a flat file which has new line as its delimiter.
For ex: if top_rows=2 & bottom_rows=1
Then in a given file which looks like:
New York
DC
LA
London
Tokyo
Prague
Paris
Bombay
Sydney... (7 Replies)
Discussion started by: calredd
7 Replies
LEARN ABOUT DEBIAN
visgrep
VISGREP(1) General Commands Manual VISGREP(1)NAME
visgrep - Visual grep, greps for images in another image
SYNOPSIS
visgrep [options] image.png detect.pat match.pat ...
DESCRIPTION
visgrep is a program that greps for image in another image.
All .pat files are created using png2pat(1) or rgb2pat(1). The image.png is scanned for detect.pat starting from X,Y given in parameters.
When detect.pat is found, then all the match.pat files are scanned at an offset of x,y given in parameters. If a match is found, then vis-
grep prints the x,y and index of the item.
For example, image.png is a screenshot and match1.pat .. match5.pat are images of letters a to e. Each of these letters is enclosed in a
blue box, so detect.pat is an image of the upper left corner of the box. This box is not included in the match*.pat files, so they are
actually offset 5 pixels down and 4 pixels to the left. You might run it like this then:
visgrep -x-4 -y5 image.png match_corner.pat match_a.pat match_b.bat ...
Etc, with all matches listed. Now suppose the screen showed ace so visgrep might output:
10,10 0
50,10 2
90,10 4
Showing that match_a.pat (index 0) is at 10,10 on the screen. If no match is found even though the detection image is found, the index will
be -1.
OPTIONS
A summary of options is included below.
-h Show summary of options.
-x Set x offset for detection matching.
-y Set y offset for detection matching.
-X Start scanning at X.
-Y Start scanning at Y.
-t Set tolerance for 'fuzzy' matches, higher numbers are more tolerant.
EXIT STATUS
0 at least one match was made.
1 no matches were made.
2 an error occured.
SEE ALSO pat2ppm(1), patextract(1), png2pat(1), rgb2pat(1), xte(1).
AUTHOR
visgrep was written by Steve Slaven <bpk@hoopajoo.net>.
This manual page was written by Aurelien Jarno <aurel32@debian.org>, for the Debian project (but may be used by others).
April 20, 2004 VISGREP(1)