Sponsored Content
Full Discussion: Leaving last 30 lines
Top Forums Shell Programming and Scripting Leaving last 30 lines Post 302754145 by bvsarathi on Thursday 10th of January 2013 06:43:03 AM
Old 01-10-2013
Code:
 
tail -r temp | nawk 'NR>30'|tail -r


Last edited by Scott; 01-10-2013 at 09:18 AM.. Reason: Removed link
 

9 More Discussions You Might Find Interesting

1. Solaris

leaving ALOM mode

Some netra 240 machines went into ALOM mode, and when I issue the command; sc> console it got stuck, does it mean Solaris OS had crashed ? or what can I do to reboot,because reboot is not starting? And advice ? (3 Replies)
Discussion started by: xramm
3 Replies

2. Shell Programming and Scripting

Remove lines of the same time stamp leaving the highest

Hi guys, I have a log that looks like that below. Columns 2 3 4 5 6 7 is the date/time stamp separated by comma. UUU,02,06,2010,10,00,00,00,0000000000000000,0000000000000000,0000000000001224 UUU,02,06,2010,10,05,00,00,0000000000000000,0000000000000000,0000000000001502... (2 Replies)
Discussion started by: borderblaster
2 Replies

3. UNIX for Dummies Questions & Answers

Delete all rows but leaving first and last ones

Hello, Merry Christmas to all! I wish you the best for these holidays and the best for the next year 2011. I'd like your help please, I need to delete all the rows in the third column of my file, but without touching nor changing the first and last value position, this is an example of my... (2 Replies)
Discussion started by: Gery
2 Replies

4. Shell Programming and Scripting

Leaving for loop on condition

hi all, i have a problem...no dream :-) i want to scan a file i use the loop famous while read line do do < myfile but this scan must finish when find the another string . How can i do it? best regards for all. Francesco Please use descriptive subjects. "script." doesn't tell... (5 Replies)
Discussion started by: FrancescoIt
5 Replies

5. UNIX for Advanced & Expert Users

In a huge file, Delete duplicate lines leaving unique lines

Hi All, I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space. I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Discussion started by: krishnix
16 Replies

6. Red Hat

How to compare file leaving certain filelds?

How to compare two files leaving certain fields, using diff command the entire file is being compared. Can any one please help. (5 Replies)
Discussion started by: ramsavi
5 Replies

7. Shell Programming and Scripting

Leaving space inside sed

Hi Gurus, I have 2 files File1 : veg apple ap pl le end veg orange or an ge end File2: (2 Replies)
Discussion started by: jayadanabalan
2 Replies

8. Shell Programming and Scripting

Leaving directory Error

Hi, i have a question, when I install any software it give error message like as follow : sudo make password for csm: make all-recursive make: Entering directory `/home/csm/Desktop/miRanda-3.3a' Making all in man make: Entering directory `/home/csm/Desktop/miRanda-3.3a/man' make:... (18 Replies)
Discussion started by: harpreetmanku04
18 Replies

9. UNIX for Beginners Questions & Answers

How to delete identical lines while leaving one undeleted?

Hi, I have a file as follows. file1 Hello Hi His Hi Hi Hungry hi so I want to delete identical lines while leaving one of them undeleted. So desired output will be Hello Hi (2 Replies)
Discussion started by: beginner_99
2 Replies
TAIL(1) 						      General Commands Manual							   TAIL(1)

NAME
tail - deliver the last part of a file SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ] tail [ -fr ] [ -n nlines ] [ -c nbytes ] [ file ] DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied. Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K blocks or bytes, according to the appended flag or Default is -10l (ten ell). The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to keep watch and print further data as it appears. The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed. EXAMPLES
tail file Print the last 10 lines of a file. tail +0f file Print a file, and continue to watch data accumulate as it grows. sed 10q file Print the first 10 lines of a file. SOURCE
/src/cmd/tail.c BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length. According to custom, option +number counts lines from 1, and counts blocks and bytes from 0. Tail is ignorant of UTF. TAIL(1)
All times are GMT -4. The time now is 02:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy