08-02-2016
Quote:
Originally Posted by
RudiC
Try sed 's/ \+//g' file
can you please explain what it does
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LEARN ABOUT NETBSD
isspace
ISSPACE(3) BSD Library Functions Manual ISSPACE(3)
NAME
isspace -- white-space character test
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
isspace(int c);
DESCRIPTION
The isspace() function tests for the standard white-space characters for which isalnum(3) is false. The standard white-space characters are
the following:
' ' Space character.
f Form feed.
New-line.
Carriage return.
Horizontal tab.
v And vertical tab.
In the ``C'' locale, isspace() returns true only for the standard white-space characters.
RETURN VALUES
The isspace() 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), isblank(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isupper(3),
isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)
STANDARDS
The isspace() function conforms to ANSI X3.159-1989 (``ANSI C89'').
CAVEATS
The argument to isspace() 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