I show the input file, then the command to reformat the data. It is going to the screen, but you could redirect to a file.
The fix to the header breaks out the header line, then does all the changes via sed as you noted. (You can add more.) The command then continues with the ; (semi-colon) and issues another command -- the tail command to give me everything except for the header line.
Hi
I have searched for a way to replace odd characters in a FOLDER NAME. All search-and-replace issues I have seen, only involves how to make search-and-replace on a FILE och with TEXT INSIDE a FILE. My problem is with the FOLDER NAME.
My case is this:
I have a couple of persons that every... (5 Replies)
I've got a file (numbers.txt) filled with numbers and I want to replace each one of those numbers with a new random number between 0 and 9. This is my script so far:
#!/bin/bash
rand=$(($RANDOM % 9))
sed -i s//$rand/g numbers.txtThe problem that I have is that it replaces each number with just... (2 Replies)
Hi All,
In my file i need to remove header and trailer records which comes in 1st line and last line respectively. After that i need to replace '$\|' with '$#@'.
I am using sed command for this and its taking lot of time. Is there any other command which can be used to improve performance?
... (1 Reply)
Hi,
I have a file which includes some French Characters and I want to change them to other characters like
À to À
 to Â
É to É
.....
.....
and so on.
I am tyring to use tr command like
tr ÀÂÉ ÀÂÉ < input file
But it does not work. Only... (2 Replies)
i need to replace the any special characters with escape characters like below.
test!=123-> test\!\=123
!@#$%^&*()-= to be replaced by
\!\@\#\$\%\^\&\*\(\)\-\= (8 Replies)
Hi All,
I am trying write a simple command using AWK and SED to this but without any success.
Here is what I am using:
head -1 test1.txt>test2.txt|sed '1d;$d' test1.txt|awk '{print substr($0,0,(length($0)-2))}' >>test2.txt|tail -1 test1.txt>>test2.txt
Input:
Header
1234567
abcdefgh... (2 Replies)
i have a file in the gz format , the content of the file is as follow.
gzcat f1.gz
# 1.name
# 2.location
# 3.age
# 4.dob
.
.
.
.
.
.
.
.
.
# 43.hobbies
< Aravind,33,chennai,09091980, , , , , , , surfing> (5 Replies)
Hi,
i am having below csv file with header names, i need to change the header with appending a string
test.csv
h1,h2,h3,h4
Ouptut
hi_h1,hi_h2,hi_h3,hi_h4
I have tried below but this will take time if i have 100 headers. Is there a way to simplify this
sed -e... (5 Replies)
I have a csv which has lot of columns . I was looking for an awk script which would extract a column twice. for the first occurance the header and data needs to be intact but for the second occurance i want to replace the header name since it a duplicate and extract year value which is in ddmmyy... (10 Replies)
Hello.
A find command return a list of file.
For each fileReplace the content starting with the first "§" (of two) ending with last "ɸ" (of two), regardless of the content ( five lines )
by the following content (exactly) :
§2019_08_23§ #
# ... (8 Replies)
Discussion started by: jcdole
8 Replies
LEARN ABOUT FREEBSD
nl
NL(1) BSD General Commands Manual NL(1)NAME
nl -- line numbering filter
SYNOPSIS
nl [-p] [-b type] [-d delim] [-f type] [-h type] [-i incr] [-l num] [-n format] [-s sep] [-v startnum] [-w width] [file]
DESCRIPTION
The nl utility reads lines from the named file, applies a configurable line numbering filter operation, and writes the result to the standard
output. If file is a single dash ('-') or absent, nl reads from the standard input.
The nl utility treats the text it reads in terms of logical pages. Unless specified otherwise, 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 available for header, body and footer sections.
The starts of logical page sections are signalled by input lines containing nothing but one of the following sequences of delimiter charac-
ters:
Line Start of
::: header
:: body
: footer
If the input does not contain any logical page section signalling directives, the text being read is assumed to consist of a single logical
page body.
The following options are available:
-b type Specify the logical page body lines to be numbered. Recognized type arguments are:
a Number all lines.
t Number only non-empty lines.
n No line numbering.
pexpr Number only those lines that contain the basic regular expression specified by expr.
The default type for logical page body lines is t.
-d delim Specify the delimiter characters used to indicate the start of a logical page section in the input file. At most two characters
may be specified; if only one character is specified, the first character is replaced and the second character remains
unchanged. The default delim characters are ``:''.
-f type Specify the same as -b type except for logical page footer lines. The default type for logical page footer lines is n.
-h type Specify the same as -b type except for logical page header lines. The default type for logical page header lines is n.
-i incr Specify the increment value used to number logical page lines. The default incr value is 1.
-l num If numbering of all lines is specified for the current logical section using the corresponding -b a, -f a or -h a option, spec-
ify the number of adjacent blank lines to be considered as one. For example, -l 2 results in only the second adjacent blank
line being numbered. The default num value is 1.
-n format Specify the line numbering output format. Recognized format arguments are:
ln Left justified.
rn Right justified, leading zeros suppressed.
rz Right justified, leading zeros kept.
The default format is rn.
-p Specify that line numbering should not be restarted at logical page delimiters.
-s sep Specify the characters used in separating the line number and the corresponding text line. The default sep setting is a single
tab character.
-v startnum Specify the initial value used to number logical page lines; see also the description of the -p option. The default startnum
value is 1.
-w width Specify the number of characters to be occupied by the line number; in case the width is insufficient to hold the line number,
it will be truncated to its width least significant digits. The default width is 6.
ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of nl as described in environ(7).
EXIT STATUS
The nl utility exits 0 on success, and >0 if an error occurs.
SEE ALSO jot(1), pr(1)STANDARDS
The nl utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
The nl utility first appeared in AT&T System V Release 2 UNIX.
BUGS
Input lines are limited to LINE_MAX (2048) bytes in length.
BSD May 4, 2014 BSD