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Full Discussion: awk/sed with special characters
Top Forums Shell Programming and Scripting awk/sed with special characters Post 20840 by Perderabo on Monday 6th of May 2002 11:06:23 AM
Old 05-06-2002
Well ${string} is a variable reference like $string but more secure for adjacent characters. I could probable get away with just $string in this case.

I put the variable refernce in double quotes to protect any white space in the value. Everything else in the sed command is in single quotes to prevent anything at all from happening to them.

But the quotes and braces are shell things not sed things. sed will never see them.

As for dealing with the slash, it is possible but would require so much code that I would drop ksh and switch to c. When a script becomes more complex than the c program would be, it's time to switch languages.
 

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LEARN ABOUT OPENDARWIN

locate

LOCATE(1)						    BSD General Commands Manual 						 LOCATE(1)

NAME

     locate -- find files

SYNOPSIS

     locate [-d dbpath] pattern

DESCRIPTION

     locate searches a database for all pathnames which match the specified pattern.  The database is recomputed periodically, and contains the
     pathnames of all files which are publicly accessible.

     Shell globbing and quoting characters (``*'', ``?'', ``'', ``['' and ``]'') may be used in pattern, although they will have to be escaped
     from the shell.  Preceding any character with a backslash (``'') eliminates any special meaning which it may have.  The matching differs in
     that no characters must be matched explicitly, including slashes (``/'').

     As a special case, a pattern containing no globbing characters (``foo'') is matched as though it were ``*foo*''.

     Options:

     -d dbpath
	   Sets the list of databases to search to dbpath which can name one or more database files separated by ``:'', an empty component in the
	   list represents the default database.  The environment variable LOCATE_PATH has the same effect.

EXIT STATUS

     locate exits with a 0 if a match is found, and >0 if no match is found or if another problem (such as a missing or corrupted database file)
     is encountered.

FILES

     /var/db/locate.database	   Default database
     /usr/libexec/locate.updatedb  Script to update database.

SEE ALSO

     find(1), fnmatch(3), weekly.conf(5)

     Woods, James A., "Finding Files Fast", ;login, 8:1, pp. 8-10, 1983.

HISTORY

     The locate command appeared in 4.4BSD.

BSD
								   April 5, 2003							       BSD
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