Quick Answer: How do I get the last 50 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.

How do I print the last 10 lines of a file in Linux?

Linux tail command syntax

Tail is a command which prints the last few number of lines (10 lines by default) of a certain file, then terminates. Example 1: By default “tail” prints the last 10 lines of a file, then exits. as you can see, this prints the last 10 lines of /var/log/messages.

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. Displays the last 100 bytes of the file ( without reguard for the lines).

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

To look at the first few lines of a file, type head filename, where filename is the name of the file you want to look at, and then press <Enter>. By default, head shows you the first 10 lines of a file. You can change this by typing head -number filename, where number is the number of lines you want to see.

How do I list the first 10 files in Linux?

Steps to find Largest Directories in Linux

  1. du command : Estimate file space usage.
  2. sort command : Sort lines of text files or given input data.
  3. head command : Output the first part of files i.e. to display first 10 largest file.
  4. find command : Search file.

How do I count the number of lines in a file in Linux?

The tool wc is the “word counter” in UNIX and UNIX-like operating systems, but you can also use it to count lines in a file by adding the -l option. wc -l foo will count the number of lines in foo .

How do I see the last 10 lines in Linux?

head -15 /etc/passwd

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.

What is the process to count the number of characters and lines in a file?

The wc command stands for “word count” and has a quite simple syntax. It allows you to count the number of lines, words, bytes, and characters in one or multiple text files.

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How do I show a file line in Unix?

Write a bash script to print a particular line from a file

  1. awk : $>awk ‘{if(NR==LINE_NUMBER) print $0}’ file.txt.
  2. sed : $>sed -n LINE_NUMBERp file.txt.
  3. head : $>head -n LINE_NUMBER file.txt | tail -n + LINE_NUMBER Here LINE_NUMBER is, which line number you want to print. Examples: Print a line from single file.

How do you read a file in Unix?

How to Read a File Line By Line in Bash. The input file ( $input ) is the name of the file you need use by the read command. The read command reads the file line by line, assigning each line to the $line bash shell variable. Once all lines are read from the file the bash while loop will stop.

How do I show the number of lines in a file in Unix?

How to Count lines in a file in UNIX/Linux

  1. The “wc -l” command when run on this file, outputs the line count along with the filename. $ wc -l file01.txt 5 file01.txt.
  2. To omit the filename from the result, use: $ wc -l < file01.txt 5.
  3. You can always provide the command output to the wc command using pipe. For example:
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