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Full Discussion: Join lines with the same start string
Top Forums Shell Programming and Scripting Join lines with the same start string Post 302560808 by durden_tyler on Saturday 1st of October 2011 10:30:28 AM
Old 10-01-2011
Code:
$
$
$ cat f9
DN11-001 Thats the first line which needs to be
DN11-001 joined with the second line and also to
DN11-001 the third line as they all begin with the same
DN11-001 document number.
DN11-002 The number of lines differ
DN11-002 among the documents.
DN11-005 It can also be just one line.
$
$
$ perl -lne '/^(.*?) (.*)$/;
             if (! defined $x{$1}) {print $k,$v while ($k,$v)=each %x; %x=()}
             $x{$1}.=" $2";
             END {print $k,$v while ($k,$v)=each %x}' f9
DN11-001 Thats the first line which needs to be joined with the second line and also to the third line as they all begin with the same document number.
DN11-002 The number of lines differ among the documents.
DN11-005 It can also be just one line.
$
$
$

tyler_durden
This User Gave Thanks to durden_tyler For This Post:
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LEARN ABOUT LINUX

lsusb

lsusb(8)							Linux USB Utilities							  lsusb(8)

NAME

       lsusb - list USB devices

SYNOPSIS

       lsusb [ options ]

DESCRIPTION

       lsusb is a utility for displaying information about USB buses in the system and the devices connected to them.

OPTIONS

       -v, --verbose
	      Tells lsusb to be verbose and display detailed information about the devices shown.  This includes configuration descriptors for the
	      device's current speed.  Class descriptors will be shown, when available, for USB device classes including hub, audio, HID, communi-
	      cations, and chipcard.

       -s [[bus]:][devnum]
	      Show only devices in specified bus and/or devnum.  Both ID's are given in decimal and may be omitted.

       -d [vendor]:[product]
	      Show only devices with the specified vendor and product ID.  Both ID's are given in hexadecimal.

       -D device
	      Do  not  scan  the /dev/bus/usb directory, instead display only information about the device whose device file is given.	The device
	      file should be something like /dev/bus/usb/001/001.  This option displays detailed information like the v option; you must  be  root
	      to do this.

       -t     Tells lsusb to dump the physical USB device hierarchy as a tree. This overrides the v option.

       -V, --version
	      Print  version information on standard output, then exit successfully.

RETURN VALUE

       If the specified device is not found, a non-zero exit code is returned.

FILES

       /var/lib/usbutils/usb.ids
	      A list of all known USB ID's (vendors, products, classes, subclasses and protocols).

SEE ALSO

       lspci(8), usbview(8).

AUTHOR

       Thomas Sailer, <sailer@ife.ee.ethz.ch>.

usbutils-001							    6 May 2009								  lsusb(8)
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