# \[Bug #2552\] HOME 変数を空にして起動すると、再度空にできなくなる

**URL:** <https://www.ruby-forum.com/t/bug-2552-home-bjq-t-r6u-k-7-f5-f0-9-k-h-fey6u-k-g-j-j-k-b/181339>\
**Category:** Development\
**Created:** [January 10, 2010, 6:32am UTC](https://www.ruby-forum.com/t/bug-2552-home-bjq-t-r6u-k-7-f5-f0-9-k-h-fey6u-k-g-j-j-k-b/181339 "2010-01-10T06:32:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [January 10, 2010, 6:32am UTC](https://www.ruby-forum.com/t/bug-2552-home-bjq-t-r6u-k-7-f5-f0-9-k-h-fey6u-k-g-j-j-k-b/181339/1 "2010-01-10T06:32:12Z")

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e$B%A%1%C%He(B #2552 e$B$,99?7$5$l$^$7$?!#e(B (by pegacorn jp)

e$B!&e(Bputenv()e$B$G@\_Dj$7$?$b$N$O!"e(Bgetenv()e$B$G$be(BGetEnvironmentVariable()e$B$G$b\<hF@$G$-$ke(B  
e$B!&e(BSetEnvironmentVariable()e$B$G@\_Dj$7$?$b$N$O!"e(BGetEnvironmentVariable()e$B$G$O\<hF@$G$-$k$,e(Bgetenv()e$B$G$O\<hF@$G$-$J$$e(B

e$B$N$G!"e(BWindowse$BHG$G$OI,$:e(BGetEnvironmentVariable()e$B$G\<hF@$9$k$h$&$K$7$?J}$,NI$$$N$G$O$J$$$G$7$g$&$+!#e(B

# putenv()e$B$O4{$Ke(Bruby\_setenv()e$B$KE}0l$5$l$F$$$k$h$&$J$N$G!"e(B

# getenv()e$B$be(Bruby\_getenv()e$B$r:n$C$FE}0l$9$k$H$+!#e(B

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[http://redmine.ruby-lang.org/issues/show/2552](http://redmine.ruby-lang.org/issues/show/2552)