Sponsored Content
Full Discussion: Swapping lines
Top Forums Shell Programming and Scripting Swapping lines Post 303027817 by Scrutinizer on Tuesday 25th of December 2018 09:59:51 AM
Old 12-25-2018
Quote:
Originally Posted by Kibou
it works!.. however I don't know how to make it work for the whole file. After the first three lines it stops.

Code:
awk '{k=1;j=1;for (i=1;i<=NR;++i) k=i+2;j=i+1;print k,j,i}' RS= FS='\n' OFS='\n' ORS='\n\n' file

I tried this unsuccessfully again.
Try this modification:
Code:
awk '{i=1;j=i+1;k=i+2;print $k,$j,$i}' RS= FS='\n' OFS='\n' ORS='\n\n' file

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Swapping questions

How can you tell how much a Solaris box is swapping? At what point do page in and page out become a problem? Here is a vmstat output. > vmstat procs memory page disk faults cpu r b w swap free re mf pi po fr de sr m0 m1 m2 m3 in sy cs us sy id... (1 Reply)
Discussion started by: 98_1LE
1 Replies

2. SuSE

Swapping

Hello! Why does my SuSE GNU/Linux machine swap? I have a Gig of ram, currently 14MBs of free RAM, 724MB - buffers and caches... That is 685MB of cached RAM, then kernel really should'nt have to swap, It should release cached memory in my thinkin... It has only swaped 3MB's but still,... (3 Replies)
Discussion started by: Esaia
3 Replies

3. Shell Programming and Scripting

Swapping or switching 2 lines using sed

I made a script that can swap info on two lines using a combination of awk and sed, but was hoping to consolidate the script to make it run faster. If found this script, but can't seem to get it to work in a bash shell. I keep getting the error "Too many {'s". Any help here would be appreciated:... (38 Replies)
Discussion started by: LaTortuga
38 Replies

4. Shell Programming and Scripting

Swapping lines beginning with certain words using sed/awk

I have a large file which reads like this: fixed-address 192.168.6.6 { hardware ethernet 00:22:64:5b:db:b1; host X; } fixed-address 192.168.6.7 { hardware ethernet 00:22:64:5b:db:b3; host Y; } fixed-address 192.168.6.8 { hardware ethernet 00:22:64:5b:db:b4; host A; }... (4 Replies)
Discussion started by: ksk
4 Replies

5. Shell Programming and Scripting

swapping lines that match a condition using sed, perl or the like

I'm a bit new to regex and sed/perl stuff, so I would like to ask for some advice. I have tried several variations of scripts I've found on the net, but can't seem to get them to work out just right. I have a file with the following information... # Host 1 host 45583 { filename... (4 Replies)
Discussion started by: TheBigAmbulance
4 Replies

6. Shell Programming and Scripting

Swapping three lines

I have some text: <date>some_date</date> <text>some_text</text> <name>some_name<name> and I want to transform it to smthng like that: some_name on some_date: some_text I've tried sed: sed 's/<text>\(.*\)<\/text> <name>\(.*\)<\/name>/\2 - \1/' but it says unterminated... (13 Replies)
Discussion started by: dsjkvf
13 Replies

7. Shell Programming and Scripting

AWK swapping fields on different lines

Hi All, Sorry if this question has been posted elsewhere, but I'm hoping someone can help me! Bit of an AWK newbie here, but I'm learning (slowly!) I'm trying to cobble a script together that will save me time (is there any other kind?), to swap two fields (one containing whitespace), with... (5 Replies)
Discussion started by: Bravestarr
5 Replies

8. Shell Programming and Scripting

Swapping fields

Hallo Team, This is the command that i am running : grep ",Call Forward Not Reachable" *2013* this is the output that i am getting (i did a head -10 but the files can be more than 1000) ... (8 Replies)
Discussion started by: kekanap
8 Replies

9. Shell Programming and Scripting

Swapping the 1st 4 lines only

How can you swap the first 4 line only, the rest will stay the same. thanks #!/bin/sh line=4 awk -v var="$line" 'NR==var { s=$0 getline;s=$0"\n"s getline;print;print s next }1' fileko.tx . desired output: (8 Replies)
Discussion started by: invinzin21
8 Replies

10. Solaris

Swapping

Hi Guys I am using SPARC-T4 (chipid 0, clock 2998 MHz), SunOS 5.10 Generic_150400-38 sun4v. How do I see if the server was doing some swapping like yesterday? I had a java application error with java.lang.OutOfMemoryError, now I want to check if the server was not doing some swapping at... (4 Replies)
Discussion started by: Phuti
4 Replies
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 Also
       pr(1)

																	     nl(1)
All times are GMT -4. The time now is 07:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy