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Full Discussion: Removing "'" from a file
Top Forums UNIX for Dummies Questions & Answers Removing "'" from a file Post 302871719 by alister on Wednesday 6th of November 2013 04:00:11 PM
Old 11-06-2013
Quote:
Originally Posted by rbatte1
Code:
[\' ]   - either a single quote or a space (single quote escaped with a back-slash
$       - end of line.

The single quote does not need to be backslash-escaped because it is not a special character in sed. Even if it were, within a bracket expression the backslash is incapable of escaping/quoting anything because in that context it is not a special character.

Code:
$ echo "123'\\ 345"
123'\ 345

$ echo "123'\\ 345" | sed "s/[\' ]//g"
123345

The correct interpretation of [\' ] is that it is an expression which matches a single backslash, quote, or space.

For detailed information, consult POSIX Regular Expressions.

Regards,
Alister

Last edited by alister; 11-06-2013 at 05:07 PM..
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wsprintf(3C)						   Standard C Library Functions 					      wsprintf(3C)

NAME
wsprintf - formatted output conversion SYNOPSIS
#include <stdio.h> #include <widec.h> int wsprintf(wchar_t *s, const char *format, /* arg */ ... );); DESCRIPTION
The wsprintf() function outputs a Process Code string ending with a Process Code (wchar_t) null character. It is the user's responsibility to allocate enough space for this wchar_t string. This returns the number of Process Code characters (excluding the null terminator) that have been written. The conversion specifications and behavior of wsprintf() are the same as the regular sprintf(3C) function except that the result is a Process Code string for wsprintf(), and on Extended Unix Code (EUC) character string for sprintf(). RETURN VALUES
Upon successful completion, wsprintf() returns the number of characters printed. Otherwise, a negative value is returned. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
wsscanf(3C), printf(3C), scanf(3C), sprintf(3C), attributes(5) SunOS 5.10 29 Dec 1996 wsprintf(3C)
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