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Hi all,
i'm working on a script that installs only the updates listed in the script parameters $4 to $11



i've got it all working nicely for just one update, it pulls softwareupdate -l, egrep only the updates listed in $4 to $11, then formats the result into an array (with just has the description and no spaces except between each update then installs as below)



update=$( softwareupdate -i -v "${install
  • }" >> "$logpath" )


    • But if i try to install more than one update it comes back with
    'OS X El Capitan Update-10.11.6' 'RAWCameraUpdate6.21-6.21': No such update
    if i echo "${install

  • }" in the script it looks correctly formatted and if i run the command below straight in Terminal they install with no issue.



    softwareupdate -i -v 'OS X El Capitan Update-10.11.6' 'RAWCameraUpdate6.21-6.21'


    Any ideas why the update binary isn't liking it when using the array variable ?

    • I have only used an array in a loop, so I am not sure how it would react where the binary expects a string parameter. Either way, you should try debugging your script by adding 



    set -x


    before the softwareupdate commands so you can see exactly how it is expanding the variables.

    Thanks @jfilice_at_csumb very useful



    Using set - x it shows 



    ++ softwareupdate -i -v ''''OS X El Capitan Update-10.11.6''' '''RAWCameraUpdate6.21-6.21''''


    it must be picking up those extra double quotes and somewhere ?

    Got this working now, the main commands are below,
    any advise on my scripting always greatly received, i'm not proud, luckily!



    #List all updates in an array
    
IFS=$'
    
'
    
Available=($(softwareupdate -l | grep "*" | sed 's/^.....//'))
    
echo "${Available
  • }" > /private/var/tmp/updates_available.txt
    

    
#Extract only updates listed in parameters $4 to $11
    
Install=$( echo "${Available
  • }" | egrep "$4|$5|$6|$7|$8|$9|${10}|${11}" )
    
echo "$Install" > /private/var/tmp/updates_to_install.txt
    

    
#Notify user if no updates
    
if [[ "$Install" == "" ]]; then
    
#Jamfhelper here
    

    
else
    

    
echo "Updates to install - ${install
  • }"
    

    
fi
    

    
#Write to log file
    
echo "Begin Apple Software updates - $(date +%m_%d_%Y)" > "$logpath"
    
echo "$Install" >> "$logpath"
    

    
#install updates
    
#On 10.12+ Verbose doesn't work
    

    
osversion=$( sw_vers | grep ProductVersion | sed 's/[^0-9]*//' | cut -c1-5 | sed -e 's/.//g' )
    
if [[ "$osversion" -lt "1012" ]]; then
    
update=$( softwareupdate -i -v $Install >> "$logpath" )
    
else
    
update=$( softwareupdate -i $Install >> "$logpath" )
    
fi
    

    
exit 0
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