Viewing Linux Text Files
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 filename
The 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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