more compact file, and slightly faster #14
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suggestion to change old legacy backticks by $(), more readable
We avoid calling cut, and making grep eval all the lines of quicklisp.lisp (it stop after the first lines). We cut also a few bytes of weight in the makefile.
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time echo version-$(grep -Eohm1 2[0-9-]{9} quicklisp.lisp)
-> version-2015-01-28
real 0m0,005s
user 0m0,000s
sys 0m0,000s
time echo version-
grep 'defvar qlqs-info:.version.' quicklisp.lisp | cut -d\" -f 2-> version-2015-01-28
real 0m0,010s
time echo version-$(grep 'defvar qlqs-info:.version.' quicklisp.lisp | cut -d" -f 2)
version-2015-01-28
real 0m0,066s
time echo version-
grep -Eohm1 2[0-9-]{9} quicklisp.lispversion-2015-01-28
real 0m0,073s