I have a large string which is a collection of key (space)+ value
, i.e key
followed by one or more space and then value
.
Now i need to change the value
of a particular key
using sed, awk, grep
etc. in unix
environment.
eg. of string: -Key1 Value1 -Key2 Value2 -Key3 Value3
I need a new string that is same as above only Value2
will be replaced by NewValue3