Shell Programming and Scripting

the awk statement only updates the first line for example:

*/------------------John Doe (new name)---------------------*/
Employee name1: Tom Smith (old name)
Address:
City State:
Telephone Number:
Cellular Number:
Department:
Manager:

OK then both of your input files are different then originally specified and the names contain spaces. I wonder what you FileA looks like, since you can't use a space as a separator because the number of fields will vary (e.g. my real name is S. C. Rut in Izer, which is a very common name where I live). Instead you could use a colon or some other field separator, like so:

Code:

old_name1:new_name1
old_name3:new_name3
Tom Smith:John Doe

You can then use the separator in the script to read the old and the new name. The following should work:

Code:

cp -p FileB FileB.new
while IFS=: read -r old new; do
  sed -i "s/$old/$new/" FileB.new
done < FileA

Is this a homework?
Because good programmer will not take this approach.
Usually you come up with an employee ID.
This will be a disaster if there were more than one employee with the same name.

Master file1:

Code:

Jack  Jim
Tom   Tim
Red   Rose
Steve Stan
Jack  John

Data file2:

Code:

Jack
Tom
Jack
Red
Steve
Jack

All the Jack's will be replaced with John (being the last entry in file1).
Jim will be nowhere in the picture.