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Commit 8b58e810 authored by kaashoek's avatar kaashoek
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i/o redirection in sh 

better parsing of sh commands (copied from jos sh)
cat: read from 1 if no args
sbrk system call, but untested
getpid system call
moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
parent f18ab5c0
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