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Full Discussion: Eliminate blank lines...
Top Forums UNIX for Dummies Questions & Answers Eliminate blank lines... Post 82717 by matrixmadhan on Tuesday 6th of September 2005 12:39:39 AM
Old 09-06-2005
a simple way

sed '/^$/d' < file1
 

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dsmemberutil(1) 					    BSD General Commands Manual 					   dsmemberutil(1)

NAME
dsmemberutil -- various operations for the membership APIs, including state dump, check memberships, UUIDs, etc. SYNOPSIS
dsmemberutil [-v] [-h] command [options] DESCRIPTION
dsmemberutil is a program that implements the membership API calls in a command line utility. FLAGS
A list of flags and their descriptions: -h Lists the options for calling dsmemberutil -v Causes dsmemberutil to operate in verbose mode. COMMANDS
The action of each command is described below: getuuid -ugUGsS value Takes any of the options and returns the associated UUID. getid -UGsSX value Takes any of the options and returns the associated UID or GID depending on option provided. getsid -ugUGX value Takes any of the options and returns the associated SID. checkmembership -uUxs param -gGXS param Returns if a user or group with the associated option is a member of the group. flushcache Flushes the current membership cache. Legacy commands such as dumpstate and statistics are gone. See odutil(1) for show cache and statistics operations. A list of options available. In some cases -xX and -sS can be used synonymously due to nature of the value. -u uid Using user with UID -U name Using user with name -s sid Using user with SID -x uuid Using user with UUID -g gid Using group with GID -G name Using group with name -S sid Using group with SID -X uuid Using group with UUID EXAMPLES
Get a user's uuid: % dsmemberutil getuuid -u 501 EEA4F2F6-B268-49E7-9C6F-E3C4A37DA4FD Get a group's uuid % dsmemberutil getuuid -g 0 ABCDEFAB-CDEF-ABCD-EFAB-CDEF00000000 Get a user's or group's id from a uuid % dsmemberutil getid -X ABCDEFAB-CDEF-ABCD-EFAB-CDEF0000000C gid: 12 Check a user's membership in a group (using UID and GID) % dsmemberutil checkmembership -u 501 -g 0 user is not a member of the group Check a user's membership in a group (using names) % dsmemberutil checkmembership -U root -G wheel user is a member of the group SEE ALSO
odutil(1), dseditgroup(1), dscacheutil(1) Darwin Jan 1, 2007 Darwin
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