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Operating Systems Linux Make directory used as mount point read-only Post 302921912 by coolatt on Tuesday 21st of October 2014 04:44:32 AM
Old 10-21-2014
Quote:
Originally Posted by Peasant
Can you check with mount command then if exit code is 0 do the rsync, else don't rsync ?
Touching a file will work on both directory and mountpoint so that check is not good.

Something like
Code:
mount | grep "/your/mountpoint"
if [ $? -eq 0 ]; then
echo "will rsync"
else
echo "will not rsync, unable to find mountpoint"
fi

OK i understand..but this is before starting the backup..what if during the backup itself (assume the backup will take 3 hours) the external drive gets connected for some reason ?
 

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MOUNTPOINT(1)							   User Commands						     MOUNTPOINT(1)

NAME
mountpoint - see if a directory is a mountpoint SYNOPSIS
mountpoint [-q] [-d] directory mountpoint -x device DESCRIPTION
mountpoint checks if the directory is mentioned in the /proc/self/mountinfo file. OPTIONS
-h, --help Print help and exit. -q, --quiet Be quiet - don't print anything. -d, --fs-devno Print major/minor device number of the filesystem on stdout. -x, --devno Print major/minor device number of the blockdevice on stdout. EXIT STATUS
Zero if the directory is a mountpoint, non-zero if not. AUTHOR
Karel Zak <kzak@redhat.com> ENVIRONMENT
LIBMOUNT_DEBUG=0xffff enables debug output. NOTES
The util-linux mountpoint implementation was written from scratch for libmount. The original version for sysvinit suite was written by Miquel van Smoorenburg. SEE ALSO
mount(8) AVAILABILITY
The mountpoint command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux June 2011 MOUNTPOINT(1)
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