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Full Discussion: grep problem with the ^ symbol, help needed please.
Top Forums UNIX for Dummies Questions & Answers grep problem with the ^ symbol, help needed please. Post 302180444 by Gvsumrb on Monday 31st of March 2008 08:26:29 AM
Old 03-31-2008
grep problem with the ^ symbol, help needed please.
Hello I am new to this forum and have been perplexed by this issue for the last hour of my life, I've tried to search everywhere for a solution to my syntax error, but here is my code.

grep -wvnf 'noise.dat' sample.out | sort

output:
4:Java Swing
5:Swing Java
6:Software Requirements Analysis
7:Requirements Analysis Software
8:Analysis Software Requirements

my desired ouput should be

1 Analysis Software Requirements
2 Filters Pipes and
3 Java Swing
4 Pipes and Filters
5 Requirements Analysis Software
6 Software Requirements Analysis
7 Swing Java

with the line "and Filters Pipes" omitted.

I have tried doing grep -wvnf '^noise.dat' sample.out | sort

with the ^ symbol in there but i get the "grep: ^noise.dat: No such file or directory" with so many different variations, but I just cannot figure it out.

Any help would be greatly appreciated, I have spent so much time on this, and yes I do know I am noob, but my professor for this class is horrible.
 

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LEARN ABOUT OSX

softwareupdate

softwareupdate(8)					    BSD System Manager's Manual 					 softwareupdate(8)

NAME

     softwareupdate -- system software update tool

SYNOPSIS

     softwareupdate command [args ...]

DESCRIPTION

     Software Update checks for new and updated versions of your software based on information about your computer and current software.

     Invoke softwareupdate by specifying a command followed by zero or more args.

     softwareupdate requires admin authentication for all commands except --list.  If you run softwareupdate as a normal admin user, you will be
     prompted for a password where required. Alternatively, you can run softwareupdate as root and avoid all further authentication prompts.

     The following commands are available:

     -l | --list
		 List all available updates.

     -i | --install
		 Each update specified by args is downloaded and installed.  args can be one of the following:

		 -r | --recommended
			     All updates that are recommended for your system. These are prefixed with a * character in the --list output.

		 -a | --all  All updates that are applicable to your system, including those non-recommended ones, which are prefixed with a -
			     character in the --list output. (Non-recommended updates are uncommon in any case.)

		 item ...    One or more specified updates. The --list output shows the item names you can specify here, prefixed by the * or -
			     characters. See EXAMPLES.

     -d | --download
		 Each update specified by args is downloaded but not installed. The values of args are the same as for the --install command.
		 Updates downloaded with --download can be subsequently installed with --install, or through the App Store (as long as they remain
		 applicable to your system).  Updates are downloaded to /Library/Updates, but are not designed to be installed by double-clicking
		 the packages in that directory: always use --install or the App Store to actually perform the install.

     --ignore identifier ...
		 Manages the per-machine list of ignored updates. The identifier is the first part of the item name (before the dash and version
		 number) that is shown by --list.  See EXAMPLES.

     --reset-ignored
		 Clears the per-machine list of ignored updates.

     --schedule on | off
		 Manages the per-machine automatic (background) check preference.

     -h | --help
		 Print command usage.

EXAMPLES

     The following examples are shown as given to the shell:

     softwareupdate --list

	   Software Update Tool
	   Copyright 2002-2012 Apple Inc.

	   Finding available software
	   Software Update found the following new or updated software:
	      * MacBookAirEFIUpdate2.4-2.4
		   MacBook Air EFI Firmware Update (2.4), 3817K [recommended] [restart]
	      * ProAppsQTCodecs-1.0
		   ProApps QuickTime codecs (1.0), 968K [recommended]
	      * JavaForOSX-1.0
		   Java for OS X 2012-005 (1.0), 65288K [recommended]

     sudo softwareupdate --install JavaForOSX-1.0

	   Software Update Tool
	   Copyright 2002-2012 Apple Inc.

	   Finding available software

	   Downloading Java for OS X 2012-005
	   Downloaded Java for OS X 2012-005
	   Installing Java for OS X 2012-005
	   Done with Java for OS X 2012-005
	   Done.

     sudo softwareupdate --ignore JavaForOSX

	   Ignored updates:
	   (JavaForOSX)

     sudo softwareupdate --schedule

	   Automatic check is on

Mac OS								September 11, 2012							    Mac OS
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