UNIX for Dummies Questions & Answers

# We have volumes called:
#  /Volumes/BackupsA_K
#  /Volumes/BackupsL_Z
#  /Volumes/Backups_Admin
# (could be more, etc)

# Any of these volumes could be mounted, and we want to unmount it if it exists.

# We'll see if any volumes containing "Backups" is in /Volumes/
theVolume=`(ls /Volumes | grep "Backups")`

# Just to see that we're getting a full volume name
echo $theVolume
## Let's say $theVolume is Backups_Admin

if [ $theVolume CONTAINS "Backups" ]; then
         unmount /Volumes/$theVolume
         else
         echo "No Backup Volumes Mounted"
fi

# so we need to see if $theVolume contains the word "Backups".

if [[ `expr ${theVolume} : 'Backups'` -ne 0 ]]; then
   echo 'found'
else
   echo 'not found'
fi;

#!/bin/sh

theVolume='/foo/Backups'
#theVolume='/foo/Backup'

if [ `expr "${theVolume}" : '.*Backups.*'` -ne 0 ]; then
  echo 'found'
else
  echo 'not found'
fi;

#!/bin/ksh

theVolume='/foo/Backups'
#theVolume='/foo/Backup'

if [[ "${theVolume}" = @(*Backups*) ]]; then
  echo 'found'
else
  echo 'not found'
fi;