CLI Cookbook: How to Share a Jet Stream Bookmark

#!/bin/bash
# A sample script for calls to the CLI. This one shares Bookmark across containers in same template.
#
# VERY IMPORTANT: In order for this to work, you need to go through the steps here:
# https://docs.delphix.com/display/DOCS/CLI+Cookbook%3A+Configuring+Key-Based+SSH+Authentication+for+Automation
# After this you will not need to use a username and password to log into the delphix engine. If you do not
# setup the SSH authentication you will have to manually enter the password.
#
 
##examples##
# Share Bookmark
#./shareBookmark.sh -a share JS_BOOKMARK-75
# Unshare Bookmark
#./shareBookmark.sh -a unshare JS_BOOKMARK-75
 
##### Constants
# Describes a Delphix software revision.
VERSION="1.6.2"

##### Default Values. These can be overwriten with optional arguments.
engine="10.0.1.10"
username="dev"
 
##### Functions

# Help Menu
function usage {
echo "Usage: shareBookmark.sh [[-h] | options...] -a share/unshare <bookmarkName>"
echo "Share/Unshare JetStream bookmark"
echo ""
echo "Positional arguments"
echo "bookmarkName. Format: JS_BOOKMARK-<n>"
echo ""
echo "Optional Arguments:"
echo " -h Show this message and exit"
echo " -d Delphix engine IP address or host name, otherwise revert to default"
echo " -u Server user. Password needs to manually provide at run time, otherwise revert to default"
echo " -a action to perform on bookmark. Type:String. Values:share/unshare"
}
# Create Our Session, including establishing the API version.
function create_session
{
echo "creating session..."
SSH_CMD="ssh ${username}@${engine}"
${SSH_CMD} "version $VERSION"
check_result
}

# Check the result of the curl. If there are problems, inform the user then exit.
function check_result
{
exitStatus=$?
if [ $exitStatus -ne 0 ]
then
echo "command failed with exit status $exitStatus"
echo $result 
exit 1
fi
}

function bookmark_action
{
# Change share mode of bookmark
echo "Changing share mode.." 
if [[ $action = "share" ]]
then
paramString="jetstream bookmark select $bookmarkName share; commit;"
elif [[ $action = "unshare" ]]
then
paramString="jetstream bookmark select $bookmarkName unshare; commit;"
else
usage
exit 1
fi
result=$(${SSH_CMD} $paramString)
check_result
if [[ $action = "share" ]]
then
echo "Bookmark ${bookmarkName} is now in shared mode"
elif [[ $action = "unshare" ]]
then
echo "Bookmark ${bookmarkName} is now in not-share mode" 
fi
}

##### Main
while getopts "u:d:a:h" flag; do
case "$flag" in
u ) username=${OPTARG%:*}
;;
d ) engine=$OPTARG
;;
a ) action=$OPTARG
;; 
h ) usage
exit
;;
* ) usage
exit 1
esac
done

# Shift the parameters so we only have the positional arguments left
shift $((OPTIND-1))
# Check that there is 1 positional arguments
if [ $# != 1 ]
then
usage
exit 1
fi
# Get the one positional arguments
bookmarkName=$1
create_session
bookmark_action