[NTLUG:Discuss] Auto-completion within a bash script?
Leroy Tennison
leroy_tennison at prodigy.net
Thu Apr 16 23:13:30 CDT 2009
Lance Simmons wrote:
> On Thu, Apr 16, 2009 at 6:45 PM, Leroy Tennison <leroy_tennison at prodigy.net>
> wrote:
>> An option I use a fair amount in scripts is to print a help message if there
>> are no command line arguments. That way I don't have to remember anything,
>> just execute the script knowing it won't run but giving me the help I need.
>
> I hit upon that solution earlier today, and I'm using it for the items for
> which I want autocompletion. Thanks for confirming that this way works for
> you. Now I don't have to fret that I've mis-typed a filename.
>
> If anyone's interested, the relevant changes are:
>
>> #!/bin/sh
>>
>> # Check for arguments
>> if [ "$2" = "" ]; then
>> echo 'USAGE: (1) file with addresses (2) file with message [3] [optional attachment]'; exit 0
>> fi
>>
>> # Repeat the arguments
>> echo Addresses: "$1"
>> echo Message: "$2"
>> if [ "$3" = "" ]; then
>> echo No attachment
>> else
>> echo Attachment: "$3"
>> fi
>>
>> # Get subject
>> echo Subject:
>> read SUBJECT
>> echo Subject: "$SUBJECT"
>>
>> # Get final approval
>> echo If OK, enter YES
>> read ANSWER
>>
>> # If YES, then mail
>> if [ "$ANSWER" = "YES" ]; then
>>
>> # mail without attachment
>> [blah blah]
>>
>> # mail with attachment
>> [blah blah]
>>
>> # If not YES, exit
>> else
>> echo You did not say YES.
>> fi
>>
>> exit 0
>
Just to be really picky :-)
You may have already done this but, did you check for file existence for
the addresses and attachments files?
More information about the Discuss
mailing list