Delete first 100 lines from a BIG File Post: 302657421

10 More Discussions You Might Find Interesting

1. Solaris

delete first 100 lines rather than zero out of file

Hi experts, in my solaris 9 the file- /var/adm/messeages growin too first. by 24 hours 40MB. And always giving the below messages-- bash-2.05# tail -f messages Nov 9 16:35:38 ME1 last message repeated 1 time Nov 9 16:35:38 ME1 ftpd: wtmpx /var/adm/wtmpx No such file or directory Nov 9...

2. Solaris

delete first 100 lines from a file

I have a file with 28,00,000 lines of rows in this the first 80 lines will be chunks . I want to delete the chunks of 80 lines. I tried tail -f2799920 filename. is there any efficient way to do this. Thanks in advance.

3. Shell Programming and Scripting

How to delete lines in a file that have duplicates or derive the lines that aper once

Input: a b b c d d I need: a c I know how to get this (the lines that have duplicates) : b d sort file | uniq -d But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem.

4. Shell Programming and Scripting

Print #of lines after search string in a big file

I have a command which prints #lines after and before the search string in the huge file nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r;print;c=a}b{r=$0}' b=0 a=10 s="STRING1" FILE The file is 5 gig big. It works great and prints 10 lines after the lines which contains search string in...

5. Shell Programming and Scripting

Re: Deleting lines from big file.

Hi, I have a big (2.7 GB) text file. Each lines has '|' saperator to saperate each columns. I want to delete those lines which has text like '|0|0|0|0|0' I tried: sed '/|0|0|0|0|0/d' test.txt Unfortunately, it scans the file but does nothing. file content sample:...

6. 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...

7. Shell Programming and Scripting

Delete rows from big file

Hi all, I have a big file (about 6 millions rows) and I have to delete same occurrences, stored in a small file (about 9000 rews). I have tried this: while read line do grep -v $line big_file > ok_file.tmp mv ok_file.tmp big_file done < small_file It works, but is very slow. How...

8. UNIX for Dummies Questions & Answers

Delete records from a big file based on some condition

Hi, To load a big file in a table,I have a make sure that all rows in the file has same number of the columns . So in my file if I am getting any rows which have columns not equal to 6 , I need to delete it . Delimiter is space and columns are optionally enclosed by "". This can be ...

9. Shell Programming and Scripting

Want to extract certain lines from big file

Hi All, I am trying to get some lines from a file i did it with while-do-loop. since the files are huge it is taking much time. now i want to make it faster. The requirement is the file will be having 1 million lines. The format is like below. ##transaction, , , ,blah, blah...

10. UNIX for Beginners Questions & Answers

How to copy only some lines from very big file?

Dear all, I have stuck with this problem for some days. I have a very big file, this file can not open by vi command. There are 200 loops in this file, in each loop will have one line like this: GWA quasiparticle energy with Z factor (eV) And I need 98 lines next after this line. Is...

LEARN ABOUT DEBIAN

fakenect-record

FAKENECT-RECORD(1)						libfreenect manual						FAKENECT-RECORD(1)

NAME

       fakenect-record - program to save dumps from kinect to file

SYNOPSIS

       fakenect-record [-h] [-ffmpeg] [-ffmpeg-opts options] outputdir

DESCRIPTION

       fakenect-record dumps the output of the kinect in outputdir folder. It saves the acceleration, depth, and rgb data as individual files with
       names in the form "TYPE-CURRENTIME-TIMESTAMP" where:

	* TYPE is either (a)ccel, (d)epth, or (r)gb

	* TIMESTAMP corresponds to the timestamp associated with the observation (or in the case of accel, the last timestamp seen)

	* CURRENTTIME corresponds to a floating point version of the time in seconds.

       The purpose of storing the current time is so that delays can be recreated exactly as they occurred.  For RGB and DEPTH the dump is just
       the entirety of the data provided in PPM and PGM formats respectively (just a 1 line header above the raw dump).  For ACCEL, the dump is
       the "freenect_raw_tilt_state".  Only the front part of the file name is used, with the rest left undefined (extension, extra info, etc).

       A file called INDEX.txt is also output with all of the filenames local to that directory to simplify the format (e.g., no need to read the
       directory structure).

       Once started, the program will continue to acquire data from the kinect.  When you want to stop it, hit Ctrl-C and the signal will be
       caught, runloop stopped, and everything will be stored cleanly.

OPTIONS

       -ffmpeg
	      If present, send the the video stream to ffmpeg

       -ffmpeg-opts options
	      When using ffmpeg, specify the options to be used with it. If unspecified, it will use the options "-aspect 4:3 -r 20 -vcodec
	      msmpeg4 -b 30000k"

       -h     Display the command-line help

SEE ALSO

       fakenect(1)

OpenKinect							    2012-05-21							FAKENECT-RECORD(1)

10 More Discussions You Might Find Interesting

1. Solaris

delete first 100 lines rather than zero out of file

Discussion started by: thepurple

2. Solaris

delete first 100 lines from a file

Discussion started by: salaathi

3. Shell Programming and Scripting

How to delete lines in a file that have duplicates or derive the lines that aper once

Discussion started by: necroman08

4. Shell Programming and Scripting

Print #of lines after search string in a big file

Discussion started by: prash184u