Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Print a field from the previous line
Top Forums Shell Programming and Scripting Print a field from the previous line Post 302517250 by ctsgnb on Tuesday 26th of April 2011 09:23:00 AM
Old 04-26-2011
Ah ... ooooops ok i missed the +500 ... let me fix my previous posts ...

... ok fixed

Note that you will have the following constraint :

1) Your first line must not have 0 in the field $2
2) If you have many consecutive line with the value 0 (in the column you want to check) they will have the same value (they will not be last $2+500)

if you want it to behave so then :

Code:
awk '$2{x=$2}!$2{x+=500;$2=x}1' infile

see the difference :

Code:
# cat tst
3408 5600
3796 6035
4200 6285
4676 0
4677 0
4678 0
40 1554
200 1998
652 2451
864 2728
1200 0

Code:
# awk '$2{x=$2}!$2{x+=500;$2=x}1' tst
3408 5600
3796 6035
4200 6285
4676 6785
4677 7285
4678 7785
40 1554
200 1998
652 2451
864 2728
1200 3228

Code:
# awk '$2{x=$2}!$2{$2=x+500}1' tst
3408 5600
3796 6035
4200 6285
4676 6785
4677 6785
4678 6785
40 1554
200 1998
652 2451
864 2728
1200 2728

Last edited by ctsgnb; 04-26-2011 at 11:29 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Print previous, current and next line using sed

Hi, how can i print the previous, current and next line using sed? current line is the matching line. The following prints all lines containing 'Failure' and also the immediate next line cat $file | sed -n -e '/Failure/{N;p;}' Now, i also want to print the previous line too. Thanks,... (8 Replies)
Discussion started by: ysrinu
8 Replies

2. Shell Programming and Scripting

how Print previous line ..........

HELLO...I wanted to ask you, than sure know unix more than me, as I can obtain the following solution: I have a file with rows of the type: CIAO COME STAI PERCHE COME STAI CIAO COME VA ALLO CHE FACCIAMO ................. I would that if in a line is present the word (for example) " CHE... (9 Replies)
Discussion started by: fabi20
9 Replies

3. Shell Programming and Scripting

Print the previous line

My requirement is that when ever search criteria matchs in log file, the previous line just above the search word as well as search word should be print. sample log file --03-19T11:26 xxx create version "a.sh@@/main/6" "104157 " --03-18T16:01 xxx create version "a.sh@@/main/5" ... (6 Replies)
Discussion started by: jadoo_c2
6 Replies

4. UNIX for Dummies Questions & Answers

Awk to print data from current and previous line

Hi guys, I have found your forum super useful. However, right now I am stuck on a seemingly "simple" thing in AWK. I have two columns of data, the first column in Age (in million years) and the second column is Convergence Rate (in mm/yr). I am trying to process my data so I can use it to... (2 Replies)
Discussion started by: awk_noob_456
2 Replies

5. Shell Programming and Scripting

Compare Field in Current Line with Field in Previous

Hi Guys I have the following file Essentially, I am trying to find the right awk/sed syntax in order to produce the following 3 distinct files from the file above: Basically, I want to print the lines of the file as long as the second field of the current line is equal to the... (9 Replies)
Discussion started by: moutaye
9 Replies

6. Shell Programming and Scripting

awk script -print line when $2 > $2 of previous line

Hi all, From a while loop I am reading a sorted file where I want to print only the lines that have $1 match and $2 only when the difference from $2 from the previous line is > 30. Input would be like ... AN237 010 193019 0502 1 CSU Amoxycillin AN237 080 ... (2 Replies)
Discussion started by: gafoleyo73
2 Replies

7. Shell Programming and Scripting

Replace first field of a line with previous filed of the line

Hi Everyone, I have a file as below: IM2345638,sherfvf,usha,30 IM384940374,deiufbd,usha,30 IM323763822,cdejdkdnbds,theju,15 0,dhejdncbfd,us,20 IM398202038,dhekjdkdld,tj,30 0,foifsjd,u2,40 The output i need is as below IM2345638,sherfvf,usha,30... (4 Replies)
Discussion started by: usha rao
4 Replies

8. Shell Programming and Scripting

Command/script to match a field and print the next field of each line in a file.

Hello, I have a text file in the below format: Source Destination State Lag Status CQA02W2K12pl:D:\CAQA ... (10 Replies)
Discussion started by: pocodot
10 Replies

9. Shell Programming and Scripting

How to print previous line of multiple pattern matched line?

Hello, I have below format log file, Comparing csv_converted_files/2201/9747.1012H67126.5077292103609547345.csv and csv_converted_files/22019/97447.1012H67126.5077292103609547345.csv Comparing csv_converted_files/2559/9447.1012H67126.5077292103609547345.csv and... (6 Replies)
Discussion started by: arvindshukla81
6 Replies

10. AIX

Print nth previous line after match

Please help me print nth line after match awk or sed one line command. (3 Replies)
Discussion started by: sushma123
3 Replies

LEARN ABOUT NETBSD

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
All times are GMT -4. The time now is 06:37 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy