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Full Discussion: Sed question
Top Forums UNIX for Dummies Questions & Answers Sed question Post 5578 by AkumaTay on Friday 17th of August 2001 08:45:25 AM
Old 08-17-2001
Sed question
My data file look like tis
field1:field2:field3:field4:field5

I wan to compare field 2 with 1 variable and if match change the details of it.

How can i do it?

I used to do it like tis:
#in shell script

checkSerial() {
while [ "$counter" != "correct" ]
do
echo "  \c"
echo "  \c" ; read serial
awk -v awk_serial=$serial aSerial.awk data.dat | read counter
echo $counter
if test "$counter" != "correct"
then
echo "  Serial number already exist!\c"
fi
done
counter=""
}

#aSerial.awk
BEGIN { FS = ":" }

{ if ( $2 == awk_serial )
flags=1
}

END { if ( flags != 1 )
printf "correct"
}

Pls correct my mistake coz this seems like dun work....thx
 

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LEARN ABOUT FREEBSD

pmc.tsc

PMC.TSC(3)						   BSD Library Functions Manual 						PMC.TSC(3)

NAME

     pmc.tsc -- measurements using the i386 timestamp counter

LIBRARY

     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS

     #include <pmc.h>

DESCRIPTION

     In the i386 architecture, the timestamp counter is a monotonically non-decreasing counter that counts processor cycles.

     This counter may be selected specifying an event specifier ``tsc'' to pmc_allocate(3).  The TSC is a read-only counter that may only be allo-
     cated in system-wide counting mode.  The ``tsc'' event does not support further event qualifiers.

     Multiple processes are allowed to allocate the TSC.  Once allocated, the TSC may be read using the pmc_read() function, or by using the RDTSC
     instruction.

   Event Name Aliases
     The alias ``cycles'' maps to the TSC.

SEE ALSO

     pmc(3), pmc.atom(3), pmc.core(3), pmc.core2(3), pmc.iaf(3), pmc.k7(3), pmc.k8(3), pmc.p4(3), pmc.p5(3), pmc.p6(3), pmc.soft(3), pmclog(3),
     hwpmc(4)

HISTORY

     The pmc library first appeared in FreeBSD 6.0.

AUTHORS

     The Performance Counters Library (libpmc, -lpmc) library was written by Joseph Koshy <jkoshy@FreeBSD.org>.

BSD
								  October 4, 2008							       BSD
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