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Full Discussion: Removing Header & Trailer from a file
Top Forums Shell Programming and Scripting Removing Header & Trailer from a file Post 302358411 by karthi_gana on Friday 2nd of October 2009 12:24:06 PM
Old 10-02-2009
Thanks Franklin!

I tested the second one. It works fine.

But i don't want to create another file. I tested the script as below

filename > filename. After executing the script, the <filename> becomes empty.

so isn't possible to remove the header & footer and store it in the same file itself?

Also can you tell me what is the difference between the first one and second one? i mean which will give give good performance?
Last edited by karthi_gana; 10-02-2009 at 01:30 PM..
 

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LEARN ABOUT NETBSD

ugensa

UGENSA(4)						   BSD Kernel Interfaces Manual 						 UGENSA(4)

NAME

     ugensa -- USB generic serial adapter

SYNOPSIS

     ugensa*  at uhub?
     ucom*  at ugensa?

HARDWARE

     The ugensa driver supports the following adapters (or their USB device portion, for adaptors that contain a USB host controller, hub and a
     USB device):

	   Airprime PC5220
	   Novatel FlexPak GPS receiver
	   Qualcom CDMA MSM (found in Kyocera KPC650 EVDO interface)
	   Qualcom Inc. CDMA AC8700 (found in the ZTE 1x EVDO interface)
	   Sierra AirCard 580
	   Sierra AirCard 595
	   Sierra AirCard 875 [not tested]
	   Sierra Wireless EM5625 [not tested]
	   Sierra Wireless MC5720 [not tested]
	   Sierra Wireless MC5725 [not tested]
	   Sierra Wireless MC8755 [not tested]
	   Sierra Wireless MC8755 [not tested]
	   Sierra Wireless MC8755 [not tested]
	   Sierra Wireless MC8765 [not tested]
	   Sierra Wireless MC8775 [not tested]
	   Novatel Wireless Merlin CDMA (found in Verizon V620) [not tested]
	   Novatel ExpressCard [not tested]
	   Novatel Wireless S720 [not tested]
	   Novatel Ovation U720 [not tested]
	   Novatel Merlin XU870 HSDPA ExpressCard [not tested]
	   Novatel Merlin ES620 [not tested]
	   Dell/Novatel Wireless HDSPA modem
	   Dell W5500 HDSPA modem [not tested]
	   AnyDATA ADU-E500A [not tested]

DESCRIPTION

     The ugensa driver provides support for the USB-to-RS-232 Bridge chip used by various vendors.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

SEE ALSO

     tty(4), ucom(4), usb(4)

HISTORY

     The ugensa driver first appeared in NetBSD 3.0.

BSD
								 December 14, 2009							       BSD
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