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author | cvpcs <root@cvpcs.org> | 2010-06-02 11:02:31 -0500 |
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committer | cvpcs <root@cvpcs.org> | 2010-06-02 11:02:31 -0500 |
commit | 772f20abb0a3a0979c440114bf3a1cff5b3cef03 (patch) | |
tree | 3384b9291d73a12542c526a8557218c7435491b0 /examples/functions/fact | |
download | external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.zip external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.tar.gz external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.tar.bz2 |
initial import of bash 4.1
Diffstat (limited to 'examples/functions/fact')
-rw-r--r-- | examples/functions/fact | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/examples/functions/fact b/examples/functions/fact new file mode 100644 index 0000000..97efd49 --- /dev/null +++ b/examples/functions/fact @@ -0,0 +1,13 @@ +# Who said shells can't use recursion? Here is a factorial function. +# You call it with a number as an argument, and it returns the factorial +# of that number. + +fact () +{ + local num=$1; + if [ "$num" = 1 ] ; then + echo 1 + return ; + fi; + echo $(( $num * $(fact $(( $num - 1 )) ) )) +} |