The head Command
The head command displays the beginning of a file.The format of the head command is: head filename
By default, you can only read the first ten lines of a file. You can change the number of lines displayed by specifying a number option.
eg: head -20 filename
The above command would display the first 20 lines of a file named "filename"The Tail Command
The tail command does the vice versa of Head command and it displays the bottom ten lines of the file by default in linux.
eg: tail filenameThe more Command
The more command is used to view text in the terminal window one page or screen at a time. The [Space] bar moves forward one page and "Q" quits.
The less Command
The format of the less command is:
less filename
less command alows single-line movement using the same navigation press the [Space] bar to go down one page, the "B" to go back one page, the directional "arrow" keys to move one line at a time, and "Q" to quit.
To search the output of a text file using less, press "/" and enter the keyword to search for within the file.
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