John Plocher <[EMAIL PROTECTED]> wrote:
> What kinds of risk? By definition, existing scripts and customers don't use
> the long options, so this would be justified only by how it enabled new
> markets (i.e., porting from Linux...); adding long options diverges the
> commands from the POSIX spec, so there might be issues there; following
> some other spec for the names of the long options (gnu?) means that we
> would have two disjoint sources of potential change to manage - what if
> POSIX changes and what if GNU changes.
For commands I develop that are intended to be full POSIX replacement programs
(such as sfind), I tend to use documentation methods to warn people about a
devergence to POSIX.
Example:
sfind -help
Usage: sfind [options] [path_1 ... path_n] [expression]
Options:
-H follow symbolics links encountered on command line
-L follow all symbolic links
* -P do not follow symbolic links (default)
* -help Print this help.
* -version Print version number.
Operators in decreasing precedence:
( ) group an expression
!, -a, -o negate a primary (unary NOT), logical AND, logical OR
Primaries:
* -acl TRUE if the file has additional ACLs defined
-atime # TRUE if st_atime is in specified range
-ctime # TRUE if st_ctime is in specified range
-depth evaluate directory content before directory (always TRUE)
-exec program [argument ...] \;
-exec program [argument ...] {} +
* -follow outdated: follow all symbolic links (always TRUE)
* -fstype type TRUE if st_fstype matches type
-group gname/gid TRUE if st_gid matches gname/gid
* -inum # TRUE is st_ino is in specified range
* -linkedto path TRUE if the file is linked to path
-links # TRUE is st_nlink is in specified range
* -lname glob TRUE if symlink name matches shell glob
* -local TRUE if st_fstype does not match remote fs types
* -lpat pattern TRUE if symlink name matches pattern
* -ls list files similar to 'ls -ilds' (always TRUE)
-mtime # TRUE if st_mtime is in specified range
-name glob TRUE if path component matches shell glob
-newer file TRUE if st_mtime newer then mtime of file
-newerXY file TRUE if [acm]time (X) newer then [acm]time (Y) of file
-nogroup TRUE if not in group database
-nouser TRUE if not in user database
-ok program [argument ...] \;
* -pat pattern TRUE if path component matches pattern
* -path glob TRUE if full path matches shell glob
-perm mode/onum TRUE if symbolic/octal permission matches
* -ppat pattern TRUE if full path matches pattern
-print print file names line separated to stdout (always TRUE)
* -printnnl print file names space separated to stdout (always TRUE)
-prune do not descent current directory (always TRUE)
-size # TRUE if st_size is in specified range
-type c TRUE if file type matches, c is from (b c d D e f l p s)
-user uname/uid TRUE if st_uid matches uname/uid
* -xattr TRUE if the file has extended attributes
-xdev, -mount restrict search to current filesystem (always TRUE)
Primaries marked with '*' are POSIX extensions.
If path is omitted, '.' is used. If expression is omitted, -print is used.
Jörg
--
EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
[EMAIL PROTECTED] (uni)
[EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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