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Diffstat (limited to 'tests/sh.testcases')
| -rw-r--r-- | tests/sh.testcases | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/sh.testcases b/tests/sh.testcases index 88e709f87..e2a75873e 100644 --- a/tests/sh.testcases +++ b/tests/sh.testcases @@ -28,6 +28,35 @@ if false; then tr 'A-Z' 'a-z'; else echo bar4; fi <foo if true || false; then echo foo; else echo bar5; fi if true && false; then echo bar6; else echo foo; fi +# basic distinction between local and env variables +unset FOO +FOO=bar env | grep FOO +echo "but not here: $FOO" +FOO=bar +env | grep FOO +echo "yes, here: $FOO" +FOO= +echo a $FOO b +echo "a $FOO b" + +# not quite so basic variables. Credit to Matt Kraai. +unset FOO +FOO=bar +export FOO +env | grep FOO +unset FOO +export FOO=bar +FOO=baz +env | grep FOO + +# interaction between environment variables and if/then and subshells +FOO=default +if true; then FOO=new; fi +echo $FOO +FOO=default +(FOO=bogus) +echo $FOO + # make sure we can duplicate file descriptors properly echo replacement >foo 2>&1 cat foo |