02-25-2009
Shell script to remove duplicates lines in a file
Hi,
I am writing a shell script that needs to remove duplicate lines within a file by category.
example:
section a
a
c
b
a
section b
a
b
a
c
I need to remove the duplicates within th category with out removing the duplicates from the 2 different sections (one of the a's in section a, and one of the a's in section b).
I wanted to use uniq but i have to sort the file first...which takes the lines out of the sections they are supposed to be in and sorts the entire file which I don't want.....but I wouldn't mind sorting it by category if possible.
any help is appreciated.
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size(1) General Commands Manual size(1)
NAME
size - print section sizes of object files
SYNOPSIS
files
DESCRIPTION
produces section size information for each section in the object files. The size of the text, data and bss (uninitialized data) sections
are printed along with the total size of the object file. If an archive file is input to the command, the information for all archive mem-
bers is displayed.
Options
recognizes the following options:
Print sizes in decimal. This is the default.
Print sizes in octal.
Print sizes in hexadecimal.
Print version information about the command.
Print a verbose list of the subspaces in the object files.
Each subspace is listed on a separate line with its size, physical address, and virtual address.
Print the size of each allocatable section (ELF only).
Print the size and permission bits of each loadable segment (ELF only).
Print the sizes of non loadable segments or non allocatable sections
(ELF only).
Print the usage menu.
EXTERNAL INFLUENCES
Environment Variables
The following internationalization variables affect the execution of
Determines the locale category for native language, local customs and
coded character set in the absence of and other environment variables. If is not specified or is set to the empty string, a default
of (see lang(5)) is used instead of
Determines the values for all locale categories and has precedence over
and other environment variables.
Determines the locale that should be used to affect the format
and contents of diagnostic messages written to standard error.
Determines the locale category for numeric formatting.
Determines the locale category for character handling functions.
Determines the location of message catalogues for the processing
of
If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to See envi-
ron(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
DIAGNOSTICS
name cannot be read.
name is not an appropriate object file.
EXAMPLES
Compare the sizes of the text, data, and bss sections for two versions of a program:
SEE ALSO
System Tools:
as(1) translate assembly code to machine code
cc(1) invoke the HP-UX C compiler
ld(1) invoke the link editor
Miscellaneous:
a.out(4) assembler, compiler, and linker output
ar(4) archive format
STANDARDS CONFORMANCE
size(1)