61 lines
1.4 KiB
Plaintext
61 lines
1.4 KiB
Plaintext
# try running this with bash, ksh, ash, and hush.
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# simple quoting rules.
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echo a b
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echo "a b"
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echo a "" b
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echo a '' b
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echo hello?
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echo "hello?"
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echo t* hello
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echo t\* hello
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# quick and painless exit for lash
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if false; then true; exit; fi
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# fairly simple command substitution
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echo `echo -e foo\\\necho bar`
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echo THIS IS A TEST >foo
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cat $(echo FOO | tr 'A-Z' 'a-z')
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cat foo | tr 'A-Z' 'a-z'
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cat $(echo FOO | tr 'A-Z' 'a-z') | tr 'A-Z' 'a-z'
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cat foo | if true; then tr 'A-Z' 'a-z'; else echo bar1; fi
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cat foo | if false; then tr 'A-Z' 'a-z'; else echo bar2; fi
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if true; then tr 'A-Z' 'a-z'; else echo bar3; fi <foo
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if false; then tr 'A-Z' 'a-z'; else echo bar4; fi <foo
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if true || false; then echo foo; else echo bar5; fi
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if true && false; then echo bar6; else echo foo; fi
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# make sure we can duplicate file descriptors properly
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echo replacement >foo 2>&1
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cat foo
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cat doesnt_exist >foo 2>&1
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tr 'a-z' 'A-Z' <foo
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# fairly simple example of hush expanding variables too early
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unset TMP
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rm -f fish
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TMP=fish && >$TMP
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ls fish
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# ash, lash, and hush do not create fish; bash and ksh do.
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# Thanks to Tapani Tarvainen <tt@mit.jyu.fi> for this stress test.
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unset TMP
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rm -f fish
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TMP=fish >$TMP
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ls fish
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# The following example shows that hush's parser is
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# not _really_ Bourne compatible
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echo "echo Hello World" >"a=b"
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unset a
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chmod a+x "a=b"
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PATH=$PATH:.
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"a=b"
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echo $a
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# assuming the shell wasn't too buggy, clean up the mess
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rm -f a=b fish foo
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