$ bash --version GNU bash, version 5.2.37(0)-release (amd64-portbld-freebsd14.1) Copyright (C) 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. $ echo devel/llvm{1{1,2,3,4,5,6,7,8,9},2{0}} devel/llvm11 devel/llvm12 devel/llvm13 devel/llvm14 devel/llvm15 devel/llvm16 devel/llvm17 devel/llvm18 devel/llvm19 devel/llvm2{0} $ echo devel/llvm{1{1,2,3,4,5,6,7,8,9},2{0,1}} devel/llvm11 devel/llvm12 devel/llvm13 devel/llvm14 devel/llvm15 devel/llvm16 devel/llvm17 devel/llvm18 devel/llvm19 devel/llvm20 devel/llvm21 I didn't expect the curly braces at the end of the first example. It should produce devel/llvm20 in my opinion. Everything is fine as long as the number of elements are > 1. csh(1) in FreeBSD gives the expected expansion for both examples: $ echo devel/llvm{1{1,2,3,4,5,6,7,8,9},2{0}} devel/llvm11 devel/llvm12 devel/llvm13 devel/llvm14 devel/llvm15 devel/llvm16 devel/llvm17 devel/llvm18 devel/llvm19 devel/llvm20 $ echo devel/llvm{1{1,2,3,4,5,6,7,8,9},2{0,1}} devel/llvm11 devel/llvm12 devel/llvm13 devel/llvm14 devel/llvm15 devel/llvm16 devel/llvm17 devel/llvm18 devel/llvm19 devel/llvm20 devel/llvm21 -- ---------------------------------------------------------------------- Trond Endrestøl | trond.endres...@ximalas.info Member of ACM, NAS, NUUG | FreeBSD 14.2-S & Alpine 2.26