Using input from read to allow user to designate a specific volume
I am attempting to script the creation of MacOS installation flash media using read to allow the user to designate the name of the volume and store it in the variable VOLNAME. When I run the script, and input the name of the volume, I get the error:
Code:
': not a valid identifier: `VOLNAME
HSInstaller: line 7: VOLNAME: command not found
Code:
#!/bin/sh
# script for creating High Sierra installation media
# Get name of USB drive Volume
echo "Volume name to be used to create installation media (current volume content will be erased)"
read VOLNAME
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/$(VOLNAME)
I was able to use a similar substitution in a script to connect a network share without issue:
Code:
#!/bin/sh
# script for connecting to file shares.
# Get UserID and password.
echo " UID"
read UID
echo "Password"
read -s password
# Have user provide path
echo "Provide the network path to the directory you wish to connect to."
echo "use the following format:server/directory/directory"
echo "for example AR101/Dir/Team"
read NetPth
open smb://$UID:$password@$NetPth
I've had no issues with the second script. Not sure why the first is unable to use the input given. Any advice would be appreciated.
Moderator's Comments:
Please use CODE tags for data / output as well as required by forum rules!
Last edited by RudiC; 12-04-2017 at 08:30 AM..
Reason: Added CODE tags.
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LEARN ABOUT CENTOS
gluster
Gluster(8) Gluster Inc. Gluster(8)NAME
gluster - Gluster Console Manager (command line utility)
SYNOPSIS
gluster
To run the program and display gluster prompt:
gluster
(or)
To specify a command directly:
gluster [commands] [options]
DESCRIPTION
The Gluster Console Manager is a command line utility for elastic volume management. You can run the gluster command on any export server.
The command enables administrators to perform cloud operations, such as creating, expanding, shrinking, rebalancing, and migrating volumes
without needing to schedule server downtime.
COMMANDS
Volume Commands
volume info [all|<VOLNAME>]
Display information about all volumes, or the specified volume.
volume create <NEW-VOLNAME> [device vg] [stripe <COUNT>] [replica <COUNT>] [transport <tcp|rdma|tcp,rdma>] <NEW-BRICK> ...
Create a new volume of the specified type using the specified bricks and transport type (the default transport type is tcp). To
create a volume with both transports (tcp and rdma), give 'transport tcp,rdma' as an option. device vg parameter specifies volume
should use block backend instead of regular posix backend. In this case NEW-BRICK should specify an existing Volume Group and there
can be only one brick for Block backend volumes. Refer Block backend section for more details
volume delete <VOLNAME>
Delete the specified volume.
volume start <VOLNAME>
Start the specified volume.
volume stop <VOLNAME> [force]
Stop the specified volume.
volume rename <VOLNAME> <NEW-VOLNAME>
Rename the specified volume.
volume set <VOLNAME> <OPTION> <PARAMETER> [<OPTION> <PARAMETER>] ...
Set the volume options.
volume help
Display help for the volume command.
Block backend
By specifying "device vg" in volume create, a volume capable of exporting block devices(ie Volume Groups (VG)) is created. As of now
exporting only VG is supported. While creating block backend volume the "VG" (mentioned in NEW-BRICK) must exist (ie created with vgcre-
ate). VG is exported as a directory and all LVs under that VG will be exported as files. Please refer BD commands section for Block backend
related commands
Brick Commands
volume add-brick <VOLNAME> <NEW-BRICK> ...
Add the specified brick to the specified volume.
volume remove-brick <VOLNAME> <BRICK> ...
Remove the specified brick from the specified volume.
Note: If you remove the brick, the data stored in that brick will not be available. You can migrate data from one brick to another
using replace-brick option.
volume rebalance-brick <VOLNAME>(<BRICK> <NEW-BRICK>) start
Start rebalancing the specified volume.
volume rebalance <VOLNAME> stop
Stop rebalancing the specified volume.
volume rebalance <VOLNAME> status
Display the rebalance status of the specified volume.
volume replace-brick <VOLNAME> (<BRICK> <NEW-BRICK>) start|pause|abort|status|commit
Replace the specified brick.
Log Commands
volume log filename <VOLNAME> [BRICK] <DIRECTORY>
Set the log directory for the corresponding volume/brick.
volume log locate <VOLNAME> [BRICK]
Locate the log file for corresponding volume/brick.
volume log rotate <VOLNAME> [BRICK]
Rotate the log file for corresponding volume/brick.
Peer Commands
peer probe <HOSTNAME>
Probe the specified peer.
peer detach <HOSTNAME>
Detach the specified peer.
peer status
Display the status of peers.
peer help
Display help for the peer command.
BD commands
bd create <VOLNAME:/path-to-image> <size>
Creates a new image of given size in the volume. Size can be suffixed with MB, GB etc, if nothing specified MB is taken as default.
bd delete <VOLNAME:/path-to-image>
Deletes a image in the volume
bd clone <VOLNAME:/path-to-image> <new-image>
Clones an existing image (full clone)
bd snapshot <VOLNAME:/path-to-image> <new-image> <size>
Creates a linked clone of an existing image with given size. Size can be suffixed with MB, GB etc, if nothing specified MB is taken
as default.
Other Commands
help Display the command options.
quit Exit the gluster command line interface.
FILES
/var/lib/glusterd/*
SEE ALSO fusermount(1), mount.glusterfs(8), glusterfs(8), glusterd(8)COPYRIGHT
Copyright(c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
22 November 2012 Gluster command line utility Gluster(8)
12-04-2017
Using input from read to allow user to designate a specific volume
