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Shell Programming and Scripting
awk script creates empty line
Post 302545836 by kristinu on Tuesday 9th of August 2011 04:27:42 PM
08-09-2011
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I am trying to use awk to identify and print out records in fields that are empty along with which line they are in. I hope the awk below is close, it runs but nothing results. Thank you :).
awk
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LEARN ABOUT NETBSD
isblank
ISBLANK(3) BSD Library Functions Manual ISBLANK(3) NAME
isblank -- blank-space character test LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <ctype.h> int isblank(int c); DESCRIPTION
The isblank() function tests for the standard blank-space characters. The standard blank-space characters are the following: ' ' Space character. Horizontal tab. In the ``C'' locale, isblank() returns true only for the standard blank-space characters. RETURN VALUES
The isblank() function returns zero if the character tests false and returns non-zero if the character tests true. SEE ALSO
ctype(3), isalnum(3), isalpha(3), isascii(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7) CAVEATS
The argument to isblank() must be EOF or representable as an unsigned char; otherwise, the behavior is undefined. See the CAVEATS section of ctype(3) for more details. BSD
April 17, 2008 BSD