For testing the next few commands, we will need a file with a sequence of numbers from 1 to 100. For this, use the following command:
$ seq 100 > numbers.txt
The preceding command creates a file with the numbers 1 to 100 on separate lines. The following example shows the usage of the head command:
$ head numbers.txt // will display 10 lines $ head -3 numbers.txt // will show first 3 lines $ head +5 numbers.txt // will show from line 5. In few shells this command may not work
The following example shows the usage of the tail command:
$ tail numbers.txt // will display last 10 lines $ tail -5 numbers.txt // will show last 5 lines $ tail +15 numbers.txt // will show from line 15 onwards. In few shells this may not work
To print ...