UNIX for Dummies Questions & Answers

Hi Guys,

Working on a script in the Vi editor that requires the fifth column of a particular line changed.

e.g.

Name:Address:email:A

where "A" needs to be changed to what the variable $access holds ($access currently has the words admin access in it)

when I use this command :
`sed -e 's/A/"$access"/gi' < temp2.txt`
it displays the line but it doesn't seem to change the A to what the variable holds nor does it save the changes.

The output shows

Name:Address:email:"$access"

Thanks very much for the prompt response

Code:

> echo Name:Address:email:A
Name:Address:email:A

> access="admin"                

> echo Name:Address:email:A | sed "s/:A/:$access/"
Name:adminddress:email:A

> echo Name:Address:email:A | sed "s/:A/:$access/2"
Name:Address:email:admin

check if you have GNU sed which provides in-place editing feature:

Code:

       -i[SUFFIX], --in-place[=SUFFIX]

              edit files in place (makes backup if extension supplied)

Try your sed command with ' quotes..ie.

`sed -e 's/A/'$access'/gi' < temp2.txt`