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Full Discussion: how to add duplicate lines
Top Forums UNIX for Dummies Questions & Answers how to add duplicate lines Post 302447063 by mikey11415 on Friday 20th of August 2010 07:52:28 PM
Old 08-20-2010
Wow, agama, thanks!

ok, this is my first real use of awk, more or less. here goes:

/_X/ || /_Y/
means search for exactly _X or _Y
print that line, then move onto the next line
then, there is no search term, but you print, then print (effectively printing lines without _X or _Y twice--genius!!!)

THANK YOU!!!

Is there any way to start the awk searching after the first appearance of a string, like the word "matrix"?

Best

Mikey
 

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explain_strdup_or_die(3)				     Library Functions Manual					  explain_strdup_or_die(3)

NAME
explain_strdup_or_die - duplicate a string and report errors SYNOPSIS
#include <libexplain/strdup.h> char *explain_strdup_or_die(const char *data); char *explain_strdup_on_error(const char *data); DESCRIPTION
The explain_strdup_or_die function is used to call the strdup(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strdup(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_strdup_on_error function is used to call the strdup(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strdup(3) function, but still returns to the caller. data The data, exactly as to be passed to the strdup(3) system call. RETURN VALUE
The explain_strdup_or_die function only returns on success, see strdup(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_strdup_on_error function always returns the value return by the wrapped strdup(3) system call. EXAMPLE
The explain_strdup_or_die function is intended to be used in a fashion similar to the following example: char *result = explain_strdup_or_die(data); SEE ALSO
strdup(3) duplicate a string explain_strdup(3) explain strdup(3) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2009 Peter Miller explain_strdup_or_die(3)
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