Shell Programming and Scripting

Hi folks.

I have this variable called FirstIN that contains something like this: 001,002,003,004...

I am trying to assign the content of this variable into ModifiedIN but with the following format : 001 002 003 004...(changing the commas for spaces)

I thought about using sed but i am not getting the expected result...which i guess is due to my misunderstanding of the command...

Maybe with tr instead? How would i copy the content of the original var into the second var while using tr? tried ModifiedIN=$FirstIN | tr ',' ' ' but that is wrong...

Thanks.

Code:

ModifiedIN=$( echo $FirstIN  | sed "s/,/ /g" )
ModifiedIN=$( echo $FirstIN  | sed "y/,/ /" )
ModifiedIN=$( echo $FirstIN  | tr ',' ' ')

DOH! The echo! Thanks anbu23.

Code:

# FirstIN=001,002,003,004
# echo $FirstIN | tr ',' ' '
001 002 003 004
# FirstINa=`echo $FirstIN | tr ',' ' '`
# echo $FirstINa
001 002 003 004

---------- Post updated at 01:50 PM ---------- Previous update was at 01:48 PM ----------

Or using shell builtin parameter expansion

Code:

# FirstINb=${FirstIN//,/ }
# echo $FirstINb
001 002 003 004

What shell does that work for? It doesn't work for me in KSH.

Code:

$ FirstIN=001,002,003,004

$ echo $FirstIN
001,002,003,004

$ FirstINb=${FirstIN//,/ }
ksh: : bad substitution

It's a bashism.

It's not a bash-ism. It works fine in a bourne shell. I even tested it in busybox ash, one of the most limited, stripped-down, barebones bourne shells still available today.