hi Post: 62895

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Top Forums Shell Programming and Scripting hi Post 62895 by vgersh99 on Monday 21st of February 2005 10:29:38 AM

02-21-2005

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Quote:

Originally Posted by mkan

hi thanks locustfurnace

vgersh99 - sorry for asking this silly doubt

sed -e 's/[^;]//g' file |wc -c - this works fine no doubt,

but if i try

sed -e 's/;//g' file |wc -c - its not working why

i know ^ is used for excluding....what are u trying to do which makes it work

sed -e 's/[^;]//g' file
replace all the characters that are not ';' with null-strings/nothing. This effectively removes any non-';' character.

What is left?

What is left are ';'-s - and we count [wc -c] them .

vgersh99

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hal-find-by-property

hal-find(1M)						  System Administration Commands					      hal-find(1M)

NAME

       hal-find, hal-find-by-capability, hal-find-by-property - search HAL global device list

SYNOPSIS

       hal-find-by-capability --capability capability [--help]
	[--verbose] [--version]

       hal-find-by-property  --key key --string value [--help]
	[--verbose] [--version]

DESCRIPTION

       The  hal-find  commands, hal-find-by-capability and hal-find-by-property, search the Hardware Abstraction Layer (HAL) device list by speci-
       fied criteria and displays results on the standard output. hal-find-by-capability searches by capability, such as  volume  or  block.  hal-
       find-by-property searches by property, such as block.is_volume or volume.disc.has_audio.

OPTIONS

       The following options are supported:

       --capability capability	  HAL device capability to search for.

       --help			  Display list of options.

       --key key		  The key to the property that is the basis of the search.

       --string value		  The string value associated with the property that is the basis of the search.

       --verbose		  Verbose mode.

       --version		  Display version and exit.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWhalr			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Volatile			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       hald(1M), attributes(5), hal(5)

SunOS 5.11							    22 Aug 2006 						      hal-find(1M)