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Top Forums Shell Programming and Scripting how do I filter double lines from a txt file Post 302107706 by I-1 on Tuesday 20th of February 2007 08:13:38 AM
Old 02-20-2007
anbu23

Can you please explain me this line :
Quote:
awk ' { if(match( $0 , "^access-list" ) ){ if( x != $2 ){ x=$2;print } } else print } ' file
What I understand of the first part is:
if something is found that begins (^) with access-list trough the complete document ($0) ... then ???

I have no idea what this means :
{ if( x != $2 ){ x=$2;print } } else print }

Can you please explain how it works ...
 

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print-service(1M)					  System Administration Commands					 print-service(1M)

NAME
print-service - select, report, import, export active print service on a system SYNOPSIS
print-service [-s service [-m] | -q | -e file | -i file] DESCRIPTION
The print-service utility manages print service selection, as well as export and import of basic print queue configuration. Only a user root privileges or with the Printer Management profile can change the active print service or import print queue configuration. OPTIONS
The following options are supported: -s service Select the active print service for on a host. service can be one of lp or cups. -m Migrate print queue configuration during print service selection. -q Report the active print service on a host. -e file Export basic print queue configuration to a file. -i file Import basic print queue configuration from a file. EXAMPLES
Example 1 Selecting a Print Service The following command selects the CUPS print service as the active print service on a host. # print-service -s cups Example 2 Reporting the Active Print Service The following command reports the active print service on a host. # print-service -q Example 3 Exporting a Print Queue Configuration The following command exports the print queue configuration from the active print service. # print-service -e /tmp/queues Example 4 Importing a Print Queue Configuration The following command imports the print queue configuration to the active print service. # print-service -i /tmp/queues EXIT STATUS
0 Successful completion. non-zero An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWpcu | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ SEE ALSO
intro(1), attributes(5) NOTES
The print queue configuration saved and restored during export, import, and migration is limited to queue name and device name. It is likely that further configuration changes will be required before imported or migrated print queues become usable. SunOS 5.11 18 Mar 2008 print-service(1M)
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