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Thanks that worked. However I thought "echo" also did the return and an explicit return was not needed, as in this script:
#!/bin/sh

func()
{

echo 1

}

echo " The result is :"...

to use 'or' in if in bash or bourne , do this:

if [ blah ] || [ blah ] || [ blah ]; then
blah blah blah

fi

I modified the script to:


#!/bin/sh

fact()
{

if [ $1 -gt 1 ] ; then

res=`expr $1 - 1`
p=`fact $res`
else
echo $1
...

Can someone help me figure out the error with this simple script:


#!/bin/sh

fact()
{


if [ $1 -gt 1 ] ; then

p=`fact expr $1 - 1`
else
...