nl does have the ability to only number lines matching (basic) regex. But it still leaves extra spaces which may not be acceptable to you. Notice the alignment of the second and last line.
Hello, I need help in appending the line number of each line to the file and also to get the total number of lines. Can somebody please help me.
I have a file say:
abc
def
ccc
ddd
ffff
The output should be:
Instance1=abc
Instance2=def
Instance3=ccc
Instance4=ddd
Instance5=ffff
... (2 Replies)
hello everyone,
I'm having a problem doing signal handling so I post this thread to see if I could get help.
I want asynchronous signal handling, that means when I'm processing a signal (signal 1), if the same signal comes (signal 2) that signal (signal 2) shall be processed; and moreover,... (7 Replies)
I have a file with a list of config files numbered on the lefthand side 1-300. I need to have bash read each lines number and assign it to a variable so it can be chosen by the user called by the script later.
Ex. 1 some data
2 something else
3 more stuff
which number do you... (1 Reply)
I have a file with contents similar to this.
abcd
1234
4567
7666
jdjdjd
89289
9382
92
jksdj
9823
298
I want to write a shell script which count the number of lines that start with the number (disregard the lines starting with alphabets) (1 Reply)
Hi,
I'd get fields like
unix_linux_form_yyyyddmmhhmi.file.txt
shell_programming_and_scripting.txt
so on...
and want them as below
unix_linux_form
shell_programming_and
I could remove everything after a '.' as below
echo $field | sed 's/\..*//'
but how to remove... (14 Replies)
Hi all,
I'd like to search a file for the first occurence of the phrase "PLASTICS THAT EXPIRE" and then discard all the lines that came before it. Output the remainder to a new file. Operating system is hp-ux. I've searched for usual awk and sed one liners but can't find a solution.
Thank... (4 Replies)
Hello,
I am newbie to bash scripting. Could someone help me with the following.
I have log file with output as shown below
**************************LOG*************************
11/20/2013 9:11:23.64 Pinging xx.xx.xx.xx with 32 bytes of data:
11/20/2013 9:11:23.64 Reply from xx.xx.xx.xx:... (4 Replies)
I have the file:
s3_T0(2) Pos "1" "2"
s1_T1(2) Pos "1" "2"
---
0 0
1 0
0 1
1 1
---
1 2 "tau0"
1 2 "h10"
I want to patternmatch on ---
and get only the third part i.e.
1 2 "tau0"
1 2 "h10"
I wanted to start simple but even something like (5 Replies)
Hi guys !
I generated the power set of the set S={a,b,c} using crunch:
crunch 1 3 abc
and get the 39 possible subsets:
a
b
c
aa
ab
ac
ba
bb
bc
ca
cb
cc
… (2 Replies)
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 ULTRIX
nl
nl(1) General Commands Manual nl(1)Name
nl - line numbering filter
Syntax
nl [-h type] [-b type] [-f type] [-v start#] [-i incr] [-p ] [-l num] [-s sep] [-w width] [-n format] [-d delim] file
Description
The command reads lines from the named file or from the standard input, if no file is named, and reproduces the lines on the standard out-
put. Lines are numbered on the left in accordance with the command options in effect.
The command views the text it reads in terms of logical pages. Line numbering is reset at the start of each logical page. A logical page
consists of a header, a body, and a footer section. Empty sections are valid. Different line numbering options are independently avail-
able for header, body, and footer. For example, you can elect not to number header and footer lines while numbering blank lines in the
body.
The start of logical page sections is signaled by input lines containing nothing but the following delimiter characters:
Line contents Start of
::: header
:: body
: footer
Unless otherwise specified, assumes that the text it is reading is in the body of a single logical page.
Options
Command options may appear in any order and may be intermingled with an optional file name. Only one file may be named.
-b type Specifies which logical page body lines are to be numbered. The following are recognized types and their meaning: a,
number all lines; t, number lines with printable text only; n, no line numbering; pstring, number only lines that con-
tain the regular expression specified in string.
The default type for logical page body is t (text lines numbered).
-h type Same as -b type except for header. Default type for logical page header is n (no lines numbered).
-f type Same as -b type except for footer. Default for logical page footer is n (no lines numbered).
-p Do not restart numbering at logical page delimiters.
-v start# The initial value used to number logical page lines. Default is 1.
-i incr The increment value used to number logical page lines. Default is 1.
-s sep The character used in separating the line number and the corresponding text line. Default sep is a tab.
-w width The number of characters used for the line number. Default width is 6.
-n format The line numbering format. Recognized values are the following: ln, left justified, leading zeroes suppressed; rn,
right justified, leading zeroes suppressed; rz, right justified, leading zeroes kept. Default format is rn (right jus-
tified).
-l num The number of blank lines to be considered as one. For example, -l2 results in only the second adjacent blank being
numbered (if the appropriate -ha, -ba, or -fa option is set). Default is 1.
-d xx The delimiter characters specifying the start of a logical page section may be changed from the default characters (:)
to two user-specified characters. If only one character is entered, the second character remains the default character
(:). No space should appear between the -d and the delimiter characters. To enter a backslash, you must type two
backslashes (//).
Examples
nl -v10 -i10 -d!+ file1
This command numbers file1 starting at line number 10 with an increment of ten. The logical page delimiters are !+.
See Alsopr(1)nl(1)