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Full Discussion: Removing duplicates
Top Forums Shell Programming and Scripting Removing duplicates Post 83360 by jim mcnamara on Wednesday 14th of September 2005 09:10:06 AM
Old 09-14-2005
Or an even more cryptic version:
Code:
awk '!x[$1]++' filename > newfile

All this does is create an associative array. The first time it encounters the array element it will be zero, so it will print the whole record. If the element is not zero we have seen it before, so do not print it. $1 is the first field in the record.
 

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form_field_new(3CURSES) 				     Curses Library Functions					   form_field_new(3CURSES)

NAME
form_field_new, new_field, dup_field, link_field, free_field - create and destroy forms fields SYNOPSIS
cc [ flag... ] file... -lform -lcurses [ library... ] #include <form.h> FIELD *new_field(int r, int c, int frow, int fcol, int nrow, int ncol); FIELD *dup_field(FIELD *field, int frow, int fcol); FIELD *link_field(FIELD *field, int frow, int fcol); int free_field(FIELD *field); DESCRIPTION
new_field() creates a new field with r rows and c columns, starting at frow, fcol, in the subwindow of a form. nrow is the number of off- screen rows and nbuf is the number of additional working buffers. This routine returns a pointer to the new field. dup_field() duplicates field at the specified location. All field attributes are duplicated, including the current contents of the field buffers. link_field() also duplicates field at the specified location. However, unlike dup_field(), the new field shares the field buffers with the original field. After creation, the attributes of the new field can be changed without affecting the original field. free_field() frees the storage allocated for field. RETURN VALUES
Routines that return pointers return NULL on error. free_field() returns one of the following: E_OK Thefunction returned successfully. E_CONNECTED The field is already connected to a form. E_SYSTEM_ERROR System error. E_BAD_ARGUMENT An argument is incorrect. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
curses(3CURSES), forms(3CURSES), attributes(5) NOTES
The header <form.h> automatically includes the headers <eti.h> and <curses.h>. SunOS 5.11 31 Dec 1996 form_field_new(3CURSES)
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