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Full Discussion: print column value after exact match of variables in file
Top Forums Shell Programming and Scripting print column value after exact match of variables in file Post 302574523 by manas_ranjan on Thursday 17th of November 2011 12:18:41 PM
Old 11-17-2011
this is how it looks like but hard coded value

Code:
awk '/hvar_rgrpd_10d_hvams17_/ { if ( $3 ~ /_kgr_prod.rec/) print $6}'

but question how to pass the variable , it doesn't show up with any outcome

Code:
 var1=hvar_rgrpd_10d_hvams17_
var2=_kgr_prod.rec
awk -v first="$var1" -v second="$var2" '/first/ { if ( $3 ~ /second/) print $6}' filename

 

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LEARN ABOUT NETBSD

gelf_checksum

GELF_CHECKSUM(3)					   BSD Library Functions Manual 					  GELF_CHECKSUM(3)

NAME

     elf32_checksum, elf64_checksum, gelf_checksum -- return the checksum of an ELF object

LIBRARY

     ELF Access Library (libelf, -lelf)

SYNOPSIS

     #include <libelf.h>

     long
     elf32_checksum(Elf *elf);

     long
     elf64_checksum(Elf *elf);

     #include <gelf.h>

     long
     gelf_checksum(Elf *elf);

DESCRIPTION

     These functions return a simple checksum of the ELF object described by their argument elf.  The checksum is computed in way that allows its
     value to remain unchanged in presence of modifications to the ELF object by utilities like strip(1).

     Function elf32_checksum() returns a checksum for an ELF descriptor elf of class ELFCLASS32.

     Function elf64_checksum() returns a checksum for an ELF descriptor elf of class ELFCLASS64.

     Function gelf_checksum() provides a class-independent way retrieving the checksum for ELF object elf.

RETURN VALUES

     These functions return the checksum of the ELF object, or zero in case an error was encountered.

ERRORS

     These functions may fail with the following errors:

     [ELF_E_ARGUMENT]  Argument elf was NULL.

     [ELF_E_ARGUMENT]  Argument elf was not a descriptor for an ELF file.

     [ELF_E_ARGUMENT]  The ELF descriptor elf was not opened for reading or updating.

     [ELF_E_CLASS]     For functions elf32_checksum() and elf64_checksum(), ELF descriptor elf did not match the class of the called function.

     [ELF_E_HEADER]    The ELF object specified by argument elf had a malformed executable header.

     [ELF_E_RESOURCE]  An out of memory condition was detected during processing.

     [ELF_E_SECTION]   The ELF object specified by argument elf contained a section with a malformed section header.

     [ELF_E_VERSION]   The ELF object was of an unsupported version.

SEE ALSO

     strip(1), elf(3), gelf(3)

BSD
								  August 29, 2006							       BSD
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