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Full Discussion: Why cant?
Top Forums UNIX for Dummies Questions & Answers Why cant? Post 4871 by mod on Thursday 2nd of August 2001 05:17:46 AM
Old 08-02-2001
I think the best thing for you could be the if - command from livinfree, so just some comments in addition:

man test - would bring you the expressions you can use with if

-e ... file exists
-f ... file is a regular file
-d ... file is a directory
-h ... symbolic link
-b ... block device
-c ... character device
 
NAMEI(1)						      General Commands Manual							  NAMEI(1)

NAME
namei - follow a pathname until a terminal point is found SYNOPSIS
namei [options] pathname... DESCRIPTION
Namei uses its arguments as pathnames to any type of Unix file (symlinks, files, directories, and so forth). Namei then follows each path- name until a terminal point is found (a file, directory, char device, etc). If it finds a symbolic link, we show the link, and start fol- lowing it, indenting the output to show the context. This program is useful for finding a "too many levels of symbolic links" problems. For each line output, namei outputs a the following characters to identify the file types found: f: = the pathname we are currently trying to resolve d = directory l = symbolic link (both the link and it's contents are output) s = socket b = block device c = character device p = FIFO (named pipe) - = regular file ? = an error of some kind Namei prints an informative message when the maximum number of symbolic links this system can have has been exceeded. OPTIONS
-l, --long Use a long listing format (same as -m -o -v). -m, --modes Show the mode bits of each file type in the style of ls(1), for example 'rwxr-xr-x'. -o, --owners Show owner and group name of each file. -n, --nosymlinks Don't follow symlinks. -v, --vertical Vertical align of modes and owners. -x, --mountpoints Show mount point directories with a 'D', rather than a 'd'. AUTHOR
The original namei program was written by Roger Southwick <rogers@amadeus.wr.tek.com>. The program was re-written by Karel Zak <kzak@redhat.com>. BUGS
To be discovered. SEE ALSO
ls(1), stat(1) AVAILABILITY
The namei command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/. Local NAMEI(1)
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