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Top Forums Shell Programming and Scripting How to extract specific data and count number containing sets from a file? Post 302442515 by guruprasadpr on Wednesday 4th of August 2010 02:03:03 PM
Old 08-04-2010
Hi

Not sure whether I understood you correctly.

Code:
# awk '{if ($x==y)a[$1]++;else a[$1]+=0;}END{for (i in a)print i,a[i]}' x=4 y=Z file
1 2
2 0
#

where x represents the column number in which you want to search, Y represents the parameter you want to search.

Guru.
 

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nlist_ia(4)						     Kernel Interfaces Manual						       nlist_ia(4)

NAME
nlist_ia: nlist, nlist64 - structure formats for Integrity systems SYNOPSIS
Remarks The exact content of the structure defined below can be best found by examining It varies somewhat between various HP-UX implementations. This manpage describes on Integrity systems. For on PA-RISC systems, see nlist_pa(4). DESCRIPTION
and can be used to extract information from the symbol table in an object file (see nlist(3C)). They are basically the same tool, and both can process SOM and Elf files. Since symbol tables are machine dependent (as defined in each implementation's copy of a header file, is defined to encapsulate the differences. The nlist function, either or when used with the corresponding nlist structure, can be used to extract certain information about selected symbols in the symbol table. The data associated with each symbol is machine specific, thus only the name and position of the field in the function is standardized by HP-UX. The rest of the structure includes at least the value and type of the symbol. The names and meanings of all fields not standardized will change no more than necessary. The structure is the same as the structure and is used for source compatibility purposes. SEE ALSO
nlist(3C), a.out(4). Integrity Systems Only nlist_ia(4)
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