Writing to a file through shell

[rudranee]

hi,
I new to shell scripting but have experience with C,C++ and Java for quite some time.
I want to write a shell script where i'm extracting some values from i/p file and writing these to another file.
For reading i'm using

FILE=$1
while read line
do
#some action
done < $FILE

but i'm not able to find how to write to a file
Sorry if asking very bsic question but i have googled and even read some online scripting books but nothing looks satisfactory.

Thanx.

[Belisarius]

If you're using bash, I've always found the Advanced Bash-Scripting Guide.

Basically, to write out a file, you need to "echo" out values. That is,

echo ${FOO} >> ${FILE}

In case you don't know, '>>' appends the output to the specified file, whereas '>' over-writes what's currently there.