Hi boys,
I have a txt file with a lot of lines.
It have lines containing mostly only numbers but some of them contain numbers mixed with special characters and or letters or space..
its look like this:
...
Do you have any ideas of the easiest way to extract only lines containing numbers? I know its not so complicated but I am stuck on that for an hour.. and still can't find a good way to solve it.
All lines are not equal.. different length. All I need is to grep only lines with ONLY numbers.
Thanks in advance!
Last edited by radoulov; 09-06-2011 at 08:18 AM..
Reason: Code tags.
Hi,
I would like to know how to solve one of my problems using expert unix commands.
I have a file with occasional blank lines;
for example;
dertu
frthu
fghtu
frtty
frtgy
frgtui
frgtu
ghrye
frhutp
frjuf
I need to edit the file so that the file looks like this; (10 Replies)
Hi all,
This should be very easy but I can't figure it out...
I have a file that looks like this:
@SRR057408.1 FW8Y5CK02R652T length=34
AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT
+SRR057408.1 FW8Y5CK02R652T length=34
FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8
@SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
Could someone please point me in the right direction with the following?
I have a program that generates logs that contains sections like this:
IMAGE INPUT
81 0 0.995 2449470 0 1726 368 1 0.0635 0.3291
82 0 1.001 2448013 0 1666 365 1 0.0649 ... (4 Replies)
I have a spreadsheet of extremely long rows of numbers. I want to print only the last column. Tried using printf but there seems to be too many rows.
example:
3 100 34 7 23 0 8 ..... X
400 203 778 1 ..........Y
58 3 9 0 100 ..........Z
I only want to print X, Y and... (1 Reply)
Is there other way then this only solution I have found to print lines with numbers only?
file.txtone
two
three
3
four
five
5tt
6gfjdfgdf
9
66
six
0
seven
7
eight
546546
gffdg445gfg
fd644 (7 Replies)
Hi
I am getting an argument which specifies the range of numbers. eg: 7-15
Is there a way that i can easily (avoiding loop) print the range of number between and including the specified above.
The above example should translate to 7,8,9,10,11,12,13,14,15 (3 Replies)
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with:
wc -l *|sort
15263 Image.txt
16401 reference.txt
40459 richtexteditor.txt
How can I also print the number of unique lines in each file?
15263 1401 Image.txt
16401... (15 Replies)
Discussion started by: spacegoose
15 Replies
LEARN ABOUT REDHAT
nl
NL(1) FSF NL(1)NAME
nl - number lines of files
SYNOPSIS
nl [OPTION]... [FILE]...
DESCRIPTION
Write each FILE to standard output, with line numbers added. With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-b, --body-numbering=STYLE
use STYLE for numbering body lines
-d, --section-delimiter=CC
use CC for separating logical pages
-f, --footer-numbering=STYLE
use STYLE for numbering footer lines
-h, --header-numbering=STYLE
use STYLE for numbering header lines
-i, --page-increment=NUMBER
line number increment at each line
-l, --join-blank-lines=NUMBER
group of NUMBER empty lines counted as one
-n, --number-format=FORMAT
insert line numbers according to FORMAT
-p, --no-renumber
do not reset line numbers at logical pages
-s, --number-separator=STRING
add STRING after (possible) line number
-v, --first-page=NUMBER
first line number on each logical page
-w, --number-width=NUMBER
use NUMBER columns for line numbers
--help display this help and exit
--version
output version information and exit
By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn. CC are two delimiter characters for separating logical pages, a missing second
character implies :. Type \ for . STYLE is one of:
a number all lines
t number only nonempty lines
n number no lines
pREGEXP
number only lines that contain a match for REGEXP
FORMAT is one of:
ln left justified, no leading zeros
rn right justified, no leading zeros
rz right justified, leading zeros
AUTHOR
Written by Scott Bartram and David MacKenzie.
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 nl is maintained as a Texinfo manual. If the info and nl programs are properly installed at your site, the com-
mand
info nl
should give you access to the complete manual.
nl (coreutils) 4.5.3 February 2003 NL(1)