sed - shell script, how to escape variables? -

i writing shell script input value , want use value other commands. problem want escape value.

for example, if input http://example.com in following script

echo "input value my_value" read my_value  echo $my_value

it result in http://example.com

but result wish http\:\/\/example\.com

how achieve this?

command i'm trying run is

sed -i s/url/$my_value/g somefile.html

without escape becomes sed -i s/url/http://example.com/g somefile.html syntax error..

you can use other characters split s arguments. ,

sed -i 's,url,http://example.com,g'

. if want can use sed replace / in argument, before executing

url=$(echo "http://example.com"|sed 's,/,\\/,g') sed -i 's/url/'"$url"'/g' input

JVParth