It is suggested that you use Python instead of Shell to manipulate text files!!
Besides passing an unsigned integer as parameter to the option -n,
you can also pass a signed integer to it.
When a signed integer is passed to -n,
it means from/to (inclusive/exclusive similar to …
It is suggested that you use Python instead of Shell to manipulate text files!
Please refer to
Advanced Use of "head" and "tail"
on how to use head and tail for printing rows from a text file.
These 2 commands are convenient when you want to take head/tail rows …
For small structured text files, it is suggested that you use the q command to manipulate it.
For complicated logic,
it is suggested that you use a scripting language (e.g., Python) instead.
I personally discourage using of awk
unless you have a large file (that q cannot …