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tcsh 变量怪异

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tcsh 变量怪异

是什么让tcsh忽略 \fa 之后的字符？

% set funky = "`perl -e 'print pack q(c*), 9,247..255'`"
% echo "$funky" | od -x
0000000 f709 f9f8 fbfa fdfc fffe 000a
0000013
% set funky = "`perl -e 'print pack q(c*), 10,247..255'`"
% echo "$funky" | od -x
0000000 f8f7 faf9 000a
0000005

csh才不是：

% set funky = "`perl -e 'print pack q(c*), 9,247..255'`"
% echo "$funky" | od -x
0000000 f709 f9f8 fbfa fdfc fffe 000a
0000013
% set funky = "`perl -e 'print pack q(c*), 10,247..255'`"
% echo "$funky" | od -x
0000000 f8f7 faf9 fcfb fefd 0aff
0000012

% tcsh --version
tcsh 6.18.01 (Astron) 2012-02-14 (x86_64-unknown-linux) options wide,nls,dl,al,kan,rh,nd,color,filec
% dpkg -l csh
ii  csh               20110502-2.1u amd64         Shell with C-like syntax

答案1

区域设置：

% setenv LANG C
% set funky = "`perl -e 'print pack q(c*), 10,247..255'`"
% echo "$funky" | od -x
0000000 f8f7 faf9 fcfb fefd 0aff
0000012

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