All Tags | Linux and Python Tutorials

What Port Does Ping Use

Thursday, Aug 22, 2024

The ping is a popular command, tool or action to check network connectivity. Ping simply send packets to the destination hostname or IP address and waits for the response. If there is a response this simply means the remote host or IP address is up and responding properly. Most of the network tools and protocols use TCP or UDP ports for communication and data transmission. We can ask what post does ping use?

@ İsmail Baydan

2 minutes read

How to Login Mysql (10 Examples)

Tuesday, Aug 20, 2024

MySQL provides different ways to connect or login. We can login MySQL via command line interface, programatically or GUI. Here are 10 examples related to logging in to a MySQL database using different methods and contexts: 1. Basic Login via Command Line The most popular way to login MySQL is using the mysql command via Linux shell. We can provide the user name with -u and password interactively with the -p option.

@ İsmail Baydan

3 minutes read

How to Restart Mysql

Tuesday, Aug 13, 2024

MySQL is very popular opensource database used by millions of users. After installing MySQL we can manage the database service via command line interface. There are different ways to restart MySQL database server or service. To restart MySQL in Linux, you can use one of the following methods depending on your system’s service manager (either systemd or init.d): 1. Using systemctl (for systems with systemd): The defacto command to manage MySQL database server is systemctl .

@ İsmail Baydan

4 minutes read

How to Determine Size of List in Python

Monday, Aug 12, 2024

Python provides the list in order to store multiple items in a single variable. The list is a dynamic strucuter which can contain multiple items in different counts and type. In this tutorial we try to determine the size of the list in different ways. Here are 10 examples to determine the size of a list in Python: Using len() function: The defacto and most used way to determine the size of the is using len() function.

@ İsmail Baydan

3 minutes read

How to Comment in Bash

Monday, Aug 12, 2024

In Bash, comments are created using the # symbol. Anything following # on the same line is considered a comment and is ignored by the shell. This means the # sign prevents commands in the start after its occurence. Here are 20 examples of how to use comments in Bash scripts: Bash comments are very usefull to describe code. Add some notes about code or something else. Single-line comment: The most basic usage for the bash comment is like below.

@ İsmail Baydan

4 minutes read

dmesg Linux Command Tutorial with Examples

Saturday, Aug 10, 2024

Linux dmesg command displays kernel messages which contains lots of information about the system. We can get information about network, file, buffers etc. Here are 30 examples of using the dmesg command in Linux, which is used to examine or control the kernel ring buffer: Display all kernel messages: The dmesg command dislays all messages from the kernel. Be aware of that this prints lots of detailed messages. As the dmesg command will read kernel logs it requires root privileges which can be provided with the sudo .

@ Author Name

8 minutes read

Get Current Timestamp In Python

Saturday, Aug 10, 2024

Python provides different modules and methods in order to get current timestamp. In this tutorial we examine these modules and functions in detail with examples. Here are 10 examples of how to get the current timestamp in Python using different methods: Using time module: The builtin time module provides the time() method in order to get current timestamp. Do not confuse the time module with the time() method as you can see below.

@ İsmail Baydan

3 minutes read

Delete Command In Linux

Saturday, Aug 10, 2024

Linux provides different delete commands for files and directories. rm , rmdir or find commands can be used to delete files and directories easily. Here are 10 examples of the delete command (typically handled using rm, rmdir, or similar commands) in Linux: Delete a single file: The rm command is used to remove files and directories. We can simply call rm as the Linux delete command. WE can delete single file with the rm command like below.

@ İsmail Baydan

3 minutes read

How to Use Sed to Find and Replace String

Friday, Aug 9, 2024

Sed is one of the most popular text editor in Linux. Sed provides more than text editor with its flexibility to edit specified content in a pattern based way. One of the most popular usage for sed is finding and replacing string in a text file.Here are 10 examples of using the sed command in Ubuntu to perform find-and-replace operations: 1. Basic Find and Replace The most basic and popular usage of the find and replace for sed is below.

@ İsmail Baydan

3 minutes read

Ubuntu traceroute Command Tutorial

Friday, Aug 9, 2024

Ubuntu provides the traceroute command in order to check network path to the specified destination. The destination can be an IP address or hostname or an domain name. For example we can check the connectivity to the google.com with the traceroute command. Here are 20 examples of how to use the traceroute command on Ubuntu. Each example demonstrates a different option or feature that traceroute provides: 1. Basic traceroute Command We can simply use the traceroute command by providing the destination hostname.

@ İsmail Baydan

4 minutes read