Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How do we display specific row of an output from bottom given line number?
Top Forums Shell Programming and Scripting How do we display specific row of an output from bottom given line number? Post 303043995 by vbe on Wednesday 12th of February 2020 09:09:28 AM
Old 02-12-2020
OK what have you done so far?

As we agree the first code you gave in #1 wont take you very far...

Passing numbers, OK but what if its not the case? like char or words, what happens?

Writing a script that accepts arguments is something nice, but unless its for your own usage, it should be fool proof and properly written Like :

No argument -> display usage

Testing the argument values etc...
Last edited by Neo; 02-12-2020 at 11:58 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Adding a columnfrom a specifit line number to a specific line number

Hi, I have a huge file & I want to add a specific text in column. But I want to add this text from a specific line number to a specific line number & another text in to another range of line numbers. To be more specific: lets say my file has 1000 lines & 4 Columns. I want to add text "Hello"... (2 Replies)
Discussion started by: Ezy
2 Replies

2. Shell Programming and Scripting

using sed to replace a specific string on a specific line number using variables

using sed to replace a specific string on a specific line number using variables this is where i am at grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean grep -n Destination... (2 Replies)
Discussion started by: todd.cutting
2 Replies

3. Shell Programming and Scripting

Take each number in table row and find the difference from the corresponding line

I have a two files containing numbers like below. First one contains one number on each line, the other is a table of numbers, each separated by a space. There are the same number of lines in each file. I want to take each number in the row of the table and find the difference from the... (12 Replies)
Discussion started by: kristinu
12 Replies

4. Shell Programming and Scripting

Display a menu on bottom right of screen

Hi, I have a menu of around 10 lines with options. I want to display it in bottom right corner of screen for better display. I can do it with clear screen. But I don't want to use it, because it will clear the existing text. After one choice from menu is executed, the menu should just place... (3 Replies)
Discussion started by: som.nitk
3 Replies

5. Shell Programming and Scripting

Display Specific line number using tail command

Hi , 1)i want to display specific line number using tail command. e.g. display 10 line from end. Please help... 2)Want to display line 10 to 15 (from end)using tail command) (2 Replies)
Discussion started by: vivek1489
2 Replies

6. Shell Programming and Scripting

Help with ksh script to display output with specific contents

This is Input - starts with Storage Group Name and ends with Shareable and the loop continues all I need is Storage group name and Alu numbers in the below output format requested. Storage Group Name: abcd Storage Group UID: 00:00:000:00:0:0:0 HBA/SP Pairs: HBA UID ... (6 Replies)
Discussion started by: maddysa
6 Replies

7. UNIX and Linux Applications

display which line returns specific output

Hi, I'm trying to figure out a way to find which line in my file.txt with IP addresses: 192.168.0.1 192.178.0.2 etc... returns specific result when I execute command affecting all lines. For example when I run: for line in `cat file.txt`; do snmpget $line done it displays the... (5 Replies)
Discussion started by: svetoslav_sj
5 Replies

8. Homework & Coursework Questions

Using ls or echo to display a specific output

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: What single command line would you enter to get the following output? 8140 drwxr-xr-x 9 root bin 18 Jan 20... (6 Replies)
Discussion started by: dasboot
6 Replies

9. Shell Programming and Scripting

Cut from specific line number to a line number

Hi All, I've a file like this.. Sheet1 a,1 a,2 a,3 a,4 a,5 Sheet2 a,6 a,7 a,8 a,9 a,10 Sheet3 a,11 a,12 a,13 (7 Replies)
Discussion started by: manab86
7 Replies

10. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

LEARN ABOUT DEBIAN

wmcpuload

WMCPULOAD(1)						      General Commands Manual						      WMCPULOAD(1)

NAME

       wmcpuload - A dockapp to display CPU usage

SYNOPSIS

       wmcpuload [options]

DESCRIPTION

       This manual page documents briefly the wmcpuload command.  This manual page was written for the Debian GNU/Linux distribution.

       WMCPULoad is a dockapp that is supported by X window managers such as Window Maker, AfterStep, BlackBox, and Enlightenment. It displays the
       current CPU usage, expressed as a percentile and a chart, and has an LCD look-alike user interface. The back-light may be turned on/off	by
       clicking the mouse button over the application. If the CPU usage hits a certain threshold, an alarm-mode will alert you by turning on back-
       light.

OPTIONS

       This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is  included
       below.

       -d, --display <string>
	      Attempt to open a window on the named X display. In the absence of  this option, the  display  specified	by the DISPLAY environment
	      variable is used.

       -t, --title <string>
	      specify title name

       -bl, --backlight
	      turn on back-light.

       -lc, --light-color <color>
	      back-light color (rgb:6E/C6/3B is default)

       -i, --interval <number>
	      number of secs between updates (1 is default)

       -c, --cpu <number> (GNU/Linux / IRIX)
	      CPU number to monitor (Counting starts with 0).

       -n, --ignore-nice (GNU/Linux / FreeBSD / OpenBSD / NetBSD)
	      ignore a nice value

       -h, --help
	      show help text and exit

       -v, --version
	      show program version and exit

       -w, --windowed
	      run the application in windowed mode

       -wp, --windowed-withpanel
	      run the application in windowed mode with background panel

       -bw, --broken-wm
	      activate broken window manager fix

       -a, --alarm <percentage>
	      activate alarm mode. <percentage> is threshold of percentage from 0 to 100.(90 is default)

       -p, --ignore-proc <name><...>
	      ignore all processes specified by command name

AUTHOR

       WMCPULoad was written by Seiichi SATO <ssato@sh.rim.or.jp>.

       This manual page was written by Gordon Fraser <gordon@freakzone.net>, for the Debian GNU/Linux system (but may be used by others).

								   June 30, 2001						      WMCPULOAD(1)
All times are GMT -4. The time now is 01:05 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy