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Shell Programming and Scripting
Awk/sed : help on:Filtering multiple lines to one:
Post 302815263 by rveri on Friday 31st of May 2013 10:55:20 AM
05-31-2013
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Goo afternoon Sir'sould like to ask your help reagrding in this scenario using sed and awk.
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I'm attempting to insert multiple lines before a line matching a given search pattern. These lines are generated in a separate function and can either be piped in as stdout or read from a temporary file.
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Hi,
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Hi
I know sed and awk has options to give range of line numbers, but
I need to replace pattern in specific lines
Something like
sed -e '1s,14s,26s/pattern/new pattern/' file name
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I am fine with see/awk/perl
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LEARN ABOUT CENTOS
rusers
RUSERS(1) BSD General Commands Manual RUSERS(1) NAME
rusers -- who is logged in to machines on local network SYNOPSIS
rusers [-al] [host ...] DESCRIPTION
The rusers command produces output similar to who, but for the list of hosts or all machines on the local network. For each host responding to the rusers query, the hostname with the names of the users currently logged on is printed on each line. The rusers command will wait for one minute to catch late responders. The following options are available: -a Print all machines responding even if no one is currently logged in. -l Print a long format listing. This includes the user name, host name, tty that the user is logged in to, the date and time the user logged in, the amount of time since the user typed on the keyboard, and the remote host they logged in from (if applicable). DIAGNOSTICS
rusers: RPC: Program not registered The rpc.rusersd(8) daemon has not been started on the remote host. rusers: RPC: Timed out A communication error occurred. Either the network is excessively congested, or the rpc.rusersd(8) daemon has terminated on the remote host. rusers: RPC: Port mapper failure - RPC: Timed out The remote host is not running the portmapper (see portmap(8) ), and cannot accomodate any RPC-based services. The host may be down. SEE ALSO
rwho(1) users(1), who(1), portmap(8), rpc.rusersd(8) HISTORY
The rusers command appeared in SunOS. BUGS
The sorting options are not implemented. Linux NetKit (0.17) August 15, 1999 Linux NetKit (0.17)