How do I read the last line of a file?

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 .

How do I read the last line of a csv file in Python?

You could use csv. reader() to read your file as a list and print the last line.

How do you read a text file line by line in Python?

The file object provides you with three methods for reading text from a text file:

read() – read all text from a file into a string.
readline() – read the text file line by line and return all the lines as strings.
readlines() – read all the lines of the text file and return them as a list of strings.

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

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

head -10 bar.txt.
head -20 bar.txt.
sed -n 1,10p /etc/group.
sed -n 1,20p /etc/group.
awk ‘FNR <= 10’ /etc/passwd.
awk ‘FNR <= 20’ /etc/passwd.
perl -ne’1..10 and print’ /etc/passwd.
perl -ne’1..20 and print’ /etc/passwd.

How do I print the last line?

Use the right tool for the job. Since you want to get the last line of a file, tail is the appropriate tool for the job, especially if you have a large file….Find out the last line of a file:

Using sed (stream editor): sed -n ‘$p’ fileName.
Using tail: tail -1 fileName.
using awk: awk ‘END { print }’ fileName.

How do you read Top 10 lines in Python?

Use file. readline() to print the first n lines of a file

a_file = open(“file_name.txt”) Open “file_name.txt”
number_of_lines = 3.
for i in range(number_of_lines): Print the first number_of_lines lines of a_file.
line = a_file. readline()
print(line)

How do I read a file line by line?

Example of read a file line by line using BufferedReader class

import java.io.*;
public class ReadLineByLineExample1.
{
public static void main(String args[])
{
try.
{
File file=new File(“Demo.txt”); //creates a new file instance.

How do I read a text file in a python DataFrame?

Use pd. read_csv() to read a text file read_csv(file) with the path name of a text file as file to return a pd. DataFrame with the data from the text file. Further reading: Read more about pd.

What command will print nth line what will print last line?

N,$ with “p” command prints from Nth line to end of file. For example 4,$p prints from 4th line to end of file.

How to read the text file in Python?

open a text file for reading by using the open () function.

or readlines () method of the file object.

close the file using the file close () method.

How do I read lines in Python?

In Python, the most common way to read lines from a file is to do the following: for line in open(‘myfile’,’r’).readlines(): do_something(line) When this is done, however, the readlines() function loads the entire file into memory as it runs.

What is open in Python?

Python open() The open() function opens the file (if possible) and returns a corresponding file object.

How do I read the last line of a file? 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…