The regular expression matches start of line, zero or more spaces, and a nonzero positive integer, and sed replaces any match with whatever matched (& is the "magic" character which does this) and a right parenthesis.
Actually this is probably easier in awk.
NR is the current line number and $0 is the input line.
Last edited by era; 04-28-2008 at 06:20 PM..
Reason: awk too
Maybe this question is out there, but I searched and didnt see it.
To print my files I use
more filename | lpr -Pprinter
I would like to print my scripts with line numbers.
How do I do this? (2 Replies)
Hi I want to genrate 10 random 32 bit binary numbers with hamming distance 4 and 8.
11010110010101010101010101010101
11010110010101010100010101010010
if we look carefully at these two binary numbers they differ at 4 places hence hamming distance 4. Now I want to genrate these numbers... (2 Replies)
Hi i would like to add line numbers to end of each line in a file.
I am able to do it in the front of each line using sed, but not able to add at the end of the file.
Can anyone suggest
The following code adds line number to start of each line
sed = filename | sed 'N;s/\n/\t/'
how can i... (5 Replies)
Hi,
I am generating a file through some Datastage commands:
cat $TempDir/stage.txt |while read line
do
stagename=`echo $line`
dsjob -llinks $proj $jobname $stagename 2>/dev/null >> $TempDir/LinkName.txt
Now i have to assign the number... (5 Replies)
Hi all experts,
I am getting error in my shell scripts and i want to find out which lines is in errors. How i can display the line numbers . Is it NU command? Please give me some suggestions. (4 Replies)
Hi,
I am having trouble with generating random numbers. can this be done with awk?
So I have a file that looks like this:
23 30
24 40
26 34
So column1 is start and column2 is end. I want to generate 3 random #'s between start and stop:
So the output will look like this:
... (9 Replies)
I want to generate an awk function that generated a Gaussian distributed set of random numbers. I need to implement the thing below in awk. Rnd is just a uniform random number between 0 and 1
function rgaussian(r1, r2) {
Do
v1 = 2 * Rnd - 1
v2 = 2 * Rnd - 1
... (0 Replies)
Hi! I'm trying to assign line numbers to each line of the file
for example consider the following..
The contents of the input file are
hello how are you?
I'm fine.
How about you?
I'm trying to get the following output..
1 hello how are you?
2 I'm fine.
3 How about you? ... (8 Replies)
I need some help in generating pair of numbers in orders using FORTRAN code.
The order is like following.
loop_1: 1,2 2,3 3,4 4,5 5,6 6,7 7,8 ..... until <= 2000
loop_2: 1,3 3,5, 5,7 7,9 9,11 11,13 ........until <= 2000
loop_3: 1,4, 4,7 7,10 10,13 13,17 ..... until... (3 Replies)
Discussion started by: vjramana
3 Replies
LEARN ABOUT LINUX
nl
NL(1) User Commands 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, --line-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, --starting-line-number=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
pBRE number only lines that contain a match for the basic regular expression, BRE
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 nl bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report nl translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 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
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 coreutils 'nl invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 NL(1)