Delete first 100 lines from a BIG File Post: 302657905

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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...

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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.

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LEARN ABOUT DEBIAN

tgtimg

TGTIMG(8)																 TGTIMG(8)

NAME

       tgtimg - Linux SCSI Target Framework Image File Utility

SYNOPSIS

       tgtimg [-o --op <operation>] [-Y --device-type <device-type>] [-b --barcode <barcode>] [-s --size <size>] [-t --type <media-type>]
	      [-f --file <path>]

       tgtimg --help

DESCRIPTION

       Tgtimg is a utility to create and manage the image files used by the TGTD device emulation.

       This command is used to initialize device image files with the additional metadata, such as barcode, list of blocks, total size, etc that
       the TGTD emulation needs.

OPTIONS

       -h, --help
	   Show a help screen and exit.

       -o, --op {new|show}
	   Operation. Is either new to create a new image file or show to show the content of an existing image file.

       -Y, --device-type <type>
	   This specifies the type of image file.

	   Supported device types are :
	       cd   : to create media for a dvd device
	       disk : to create media for a disk device
	       tape : to create media for a tape device

       -t, --type <media-type>
	   When creating a new image, this specifies the type of media to emulate. The available mediatypes depend on the type of the device.

	   Supported media types for cd devices are :
	       dvd+r : create a blank writeable DVD+R disk

	   Supported media types for disk devices are :
	       disk  : create an empty disk

	   Supported media types for tape devices are :
	       data  : create a normal data tape
	       clean : create a cleaning tape
	       worm  : create a worm

       -b, --barcode <barcode>
	   When creating a new image, this argument specifies the barcode to use with this image file. Backup application software often uses
	   barcodes to identify specific tapes. When emulating a VTL, make sure that all tape images use unique barcodes.

       -s, --size <size>
	   When creating a new image, this specifies the size in megabytes for the virtual tape image.

       -f, --file <path>
	   The filename of the image file.

EXAMPLES

       To create a new 100MByte disk

		 tgtimg --op new --device-type disk --type disk --size 100 --file /data/hd001.raw

       To create a new tape image

		 tgtimg --op new --device-type tape --barcode 12345 --size 100 --type data --file /data/tape001.img

       To view the content of an existing image

		 tgtimg --op show --device-type tape --file /data/tape001.img

       To create a new blank DVD+R image

		 tgtimg --op new --device-type cd --type dvd+r --file /data/dvd001.iso

SEE ALSO

       tgtd(8), tgtadm(8), tgt-admin(8), tgt-setup-lun(8).  http://stgt.sourceforge.net/

REPORTING BUGS

       Report bugs to <stgt@vger.kernel.org>

								    04/04/2010								 TGTIMG(8)

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