Well I should have said shell or awk variable, the same thing applies. In this case $$a refers to the variable 'a' inside awk. $$a is used instead of judy $a in case there happens to be another variable called 'a' somewhere else in the make script itself.
On 22 March 2014 14:26, Ralf Hemmecke <[email protected]> wrote: >> BTW, the use of double dollar signs like $$a is a standard escape >> idiom for referring to a shell variable inside a make script. > > That's what I also thought, but there was no corresponding shell > variable a in this context, only the one from the for loop, but the awk > stuff was after the 'done'. > > Ralf -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
