How do I find the first few lines of a file in Unix?

How do I read the first 10 lines of a file in Linux?

Type the following head command to display first 10 lines of a file named “bar.txt”:

  1. head -10 bar.txt.
  2. head -20 bar.txt.
  3. sed -n 1,10p /etc/group.
  4. sed -n 1,20p /etc/group.
  5. awk ‘FNR <= 10’ /etc/passwd.
  6. awk ‘FNR <= 20’ /etc/passwd.
  7. perl -ne’1..10 and print’ /etc/passwd.
  8. perl -ne’1..20 and print’ /etc/passwd.

What command should be used to show the first 10 lines of a file?

The head command, as the name implies, print the top N number of data of the given input. By default, it prints the first 10 lines of the specified files.

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How do I go to the beginning of a file in Unix?

To go top of the file there are the following ways: press ESC

  1. press 1G (Capital G)
  2. press g g (small g) or 1 g g.
  3. You can jump to the particular line number,e.g wanted to go 1 line number, press 1 + G.

Which of the following will show the first 5 lines of the input file?

The head command reads the first few lines of any text given to it as an input and writes them to standard output (which, by default, is the display screen).

How do I find Top 10 files in Linux?

Command To Find Top 10 Largest Files In Linux

  1. du command -h option : display file sizes in human readable format, in Kilobytes, Megabytes and Gigabytes.
  2. du command -s option : Show total for each argument.
  3. du command -x option : Skip directories. …
  4. sort command -r option : Reverse the result of comparisons.

How do I display the first 10 files in UNIX?

head command -10 OR -n 10 option : It shows the first 10 lines.

How do I get the last 10 lines of a file in Unix?

To look at the last few lines of a file, use the tail command. tail works the same way as head: type tail and the filename to see the last 10 lines of that file, or type tail -number filename to see the last number lines of the file. Try using tail to look at the last five lines of your .

Which command prints the first 5 lines of a file on console in Linux?

The head command prints the first lines (10 lines by default) of one or more files or piped data to standard output.

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Which command will print the first line of a file?

1. The default command which comes to our mind is the head command. head with the option “-1” displays the first line.

How do I go to the beginning of a file in vi?

You can go to a particular line or word in a file using vi in several ways:

  1. To make vi start at a particular line in a file, add +line_num to the command you use to start vi. …
  2. If you’re already in vi, you can use the goto command. …
  3. You can also use the ex command line to go to a line. (

How do you go to the beginning of a line in vi?

You can use 0 or ^ to move to beginning of the line. And can use Shift + I to move to the beginning and switch to editing mode (Insert).

How do I show only the first line in Linux?

Yes, that is one way to get the first line of output from a command. There are many other ways to capture the first line too, including sed 1q (quit after first line), sed -n 1p (only print first line, but read everything), awk ‘FNR == 1’ (only print first line, but again, read everything) etc.

How do I see the last 20 lines of a file in Linux?

To display last 20 lines of a file linux use the tail command. Displays the last 20 lines. The default is 10 if you leave out the -n option.

How can you view the last 15 lines of the file in Unix?

head -15 /etc/passwd

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To look at the last few lines of a file, use the tail command. tail works the same way as head: type tail and the filename to see the last 10 lines of that file, or type tail -number filename to see the last number lines of the file.

How do you use the cat command?

$ cat [OPTION] [FILE]…

  1. Display Contents of File. …
  2. View Contents of Multiple Files in terminal. …
  3. Create a File with Cat Command. …
  4. Use Cat Command with More & Less Options. …
  5. Display Line Numbers in File. …
  6. Display $ at the End of File. …
  7. Display Tab Separated Lines in File. …
  8. Display Multiple Files at Once.