Tech Rescue

Linux

Permission Table for Linux (quick reference)

I am sure you have wondered what is the right permission for your file and tried to understand how it works, why there are numbers and letter and what all that mess means. Well here is a table that puts it in a very simple way, I am assuming you

How to hash files in Linux?

How many times have you needed to get the hash of any file in Linux? For whatever purpose you have needed to do that, rest assured that there is a set of commands that will make your life easier. These commands are part of Linux core utils. MD5 md5sum SHA-1

How to see running processes in Linux

One essential command to know when you are experimenting in Linux is the command to see which processes are running in your machine, just in case you need to kill one of them for any reason. This command is top and you use it like this: 1. Type top in

How to see available disk space in Linux

Playing around with a Raspberry PI I came to need this info. Here is the command: df -h You should see something similar to this: pi@raspberrypi:~ $ df -h Filesystem Size Used Avail Use% Mounted on /dev/root 26G 6.5G 18G 27% / devtmpfs 334M 0 334M 0% /dev tmpfs

How to know which Linux version you are running

Easy peasy! Run the following command in a Terminal: lsb_release -a You should see something similar to this: pi@raspberrypi:~ $ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 10 (buster) Release: 10 Codename: buster

How to find strings in files in Linux

Today I needed to search for a specific string in all files inside a SOAP UI project, you just need to execute the following command: grep -rnw "getList" /home/SOAPUI_Proj/ Please notice that the text in italics means that the value is variable. Sources: * http://www.cyberciti.biz/faq/

How to find strings in files in Linux

Today I needed to search for a specific string in all files inside a SOAP UI project, you just need to execute the following command: grep -rnw "getList" /home/SOAPUI_Proj/ Please notice that the text in italics means that the value is variable. Sources: * http://www.cyberciti.biz/faq/