On Fri, Nov 30, 2012 at 5:32 AM, John Horne <john.ho...@plymouth.ac.uk> wrote:
> On Thu, 2012-11-29 at 18:56 -0600, inode0 wrote:
>
>>
>> Oh, for a simple variable this should work
>>
>> echo "${XX/*
>>
>> }"
>>
> Hello,
>
> Yes, that does seem to work :-)
>
> Although I have to admit I'm not sure why! I'll investigate further :-)Basically it just drops the longest substring that matches the given pattern (match anything followed by two newlines). This does potentially miss some edge cases if you can have strings containing only a single leading or possibly trailing blank line. But you can remove leading and trailing blank lines if necessary or come up with something more clever. See the "Parameter Expansion" section of the bash man page for the details of this and other frequently useful ways to expand/modify variables. John -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
