Ever come across a file so massive that you can’t load it in a text editor? If you just want to examine it to discover the structure then this can be a real pain.
You can easily take a peek at the file by using some command line tools. You can display only the first screen of a file with the more command.
On Windows:
C:\>type {FILENAME} | more
Or redirect the output to another file then quickly cancel it. You can then open that file normally.
C:\>type {FILENAME} > smallerFile.txt
Ctrl+C (to cancel the operation)
You could use the cat or head command instead on Mac OSX or Linux.