05-12-2008
Verifying if the shell command executed or not?
Hi,
I am working on a shell script that would verify if the mount command has executed or not. So , i have been doing this.
mount /dev/cdrom /mnt/cdrom
echo "$?"
if [ "$?" = "0" ]; then
echo " Mount succesful"
else
echo " Mount unsuccessful"
fi
I have the problem with the if stmt. It is displaying " Mount successful even when it hasn't"
for example
echo "$?" would give 32, instead of going else loop, it still enters the if block of the code.
Can somebody help me with this.?
--Sundeep
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LEARN ABOUT MOJAVE
vfs-filesystems
vfs-filesystems(n) vfs-filesystems(n)
__________________________________________________________________________________________________________________________________________________
NAME
vfs-filesystems - Filesystems provided by tclvfs
SYNOPSIS
package require Tcl 8.4
package require vfs ?1.2.1?
package require vfs::zip ?1.0?
package require vfs::mk4 ?1.6?
package require vfs::tar ?0.9?
package require vfs::ftp ?1.0?
package require vfs::ns ?1.0?
package require vfs::webdav ?0.1?
package require vfs::http ?0.5?
package require vfs::urltype ?1.0?
vfs::zip::Mount path to
vfs::mk4::Mount path to
vfs::tar::Mount path to
vfs::ftp::Mount path to
vfs::ns::Mount path to
vfs::webdav::Mount path to
vfs::http::Mount path to
vfs::urltype::Mount path to
_________________________________________________________________
DESCRIPTION
The package vfs provides not only the means to implement a virtual filesystem at the tcl level, but also a number of ready to be used
filesystems as well.
Each of these filesystem exists as its own package, and can be accessed through package require vfs::NAME. The whole set of these virtual
filesystems is known informally as 'vfslib'.
SUPPORTED VFS TYPES
Currently supported are ftp, tar, http, zip, mk4, ns, and webdav. In addition there is the ability to mount any 'urltype' as a new direc-
tory, provided an appropriate vfs is supported. This means that you can treat urls based on the schemes ftp://, http:// and file:// as
files. To do this, simply evaluate the command vfs::urltype::Mount ftp for example. Any access inside the new volume will result in an
attempt to require a package through package require vfs::${type}, which must therefore exist, or errors will be thrown. If a filesystem
is loaded, use the associated command listed below to mount a source for that filesystem as a tcl directory.
vfs::zip::Mount path to
Mount the zip file path as directory to.
vfs::mk4::Mount path to
Mount the metakit database file file path as directory to.
vfs::tar::Mount path to
Mount the tar file path as directory to.
vfs::ftp::Mount path to
Mount the ftp url path as directory to.
vfs::ns::Mount path to
Mount the tcl namespace path as directory to.
vfs::webdav::Mount path to
Mount the webdav url path as directory to.
vfs::http::Mount path to
Mount the http url path as directory to.
vfs::urltype::Mount path to
Mount the url path, of type urltype as directory to.
LIMITATIONS
Most of the vfs types listed above have not been very well debugged as yet. Please test them!
SEE ALSO
vfs, vfs-fsapi
KEYWORDS
file, filesystem, ftp, http, metakit, namespace, tar, vfs, vfslib, webdav, zip
COPYRIGHT
Copyright (c) 2001-2003 Vince Darley <vincentdarley@users.sourceforge.net>
Copyright (c) 2003 Andreas Kupries <andreas_kupries@users.sourceforge.net>
Tcl-level Virtual Filesystems 1.0 vfs-filesystems(n)