Sort lines in a file
You can use the sort command in the terminal in Raspbian to sort the lines of a text file. This command can be useful if you have a file with unordered lines and want to sort the lines in some order, for example in alphabetical order.
Here’s our example text file:
We can use the sort command without any options to sort the lines in the file in the alphabetical order:
To sort the lines in reverse alphabetical order, we can use the -r flag with the sort command:
To check if the lines in the file are already sorted in alphabetical order, we use sort with the -c flag. This command will report the first unsorted line: