Hi ,Im trying to improv my unix skills but am struggling to get to grips with the eval command.
i understand that it interperets the command then executes it, however im little confused be4cause i dnt know when i need to use the command and where i need to space out characters.i.e.
eval example=\$row$rowindex - this works but i dnt know why i need the eval there and why i need to use "\"
please answer the above and
Provide some basic examples moving to more advanced uses for the command
please note i am looking for dummy proof examples to start off with.