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(string-match "^\\(バタ\\)\\{2\\}$" "バタバタ")
0
(string-match "^\\(バタ\\)\\{2\\}$" "バタ")
nil
<Solaris9>
HOME=/home/masutaka
LOGNAME=masutaka
PATH=/usr/bin:
SHELL=/usr/bin/sh
TZ=Japan
<RedHat>
PWD=/home/masutaka
HOSTNAME=chronicle.nifty.com
MACHTYPE=i386-redhat-linux-gnu
LOGNAME=masutaka
SHLVL=1
SHELL=/bin/sh
HOSTTYPE=i386
OSTYPE=linux-gnu
HOME=/home/masutaka
TERM=dumb
PATH=/usr/bin:/bin
_=/usr/bin/env
<Ubuntu 14.04>
LANGUAGE=en_US:
HOME=/home/masutaka
LOGNAME=masutaka
PATH=/usr/bin:/bin
LANG=en_US.UTF-8
SHELL=/bin/sh
PWD=/home/masutaka
追記(2014-09-28):
Ubuntu 14.04を追加しました
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