Linux
Ubuntu
sudo apt-get update
sudo apt-get upgrade
Linux Commands
touch command in Linux with Examples
The touch command is a standard command used in the UNIX/Linux operating system which is used to create, change and modify the timestamps of a file. Basically, there are two different commands to create a file in the Linux system which are as follows:
cat command:
It is used to create the file with content.
touch command:
It is used to create a file without any content. The file created using the touch command is empty. This command can be used when the user doesn’t have data to store at the time of file creation.
sudo vim /etc/apt/sources.list
uninstall cmake
sudo apt-get remove cmake
install cmake
cd /home/eric/Downloads
sudo sh cmake-3.28.0-linux-x86_64.sh --prefix=/usr/local
check ubuntu version method 1
lsb_release -a
Typical results:
eric@eric-virtual-machine:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.3 LTS
Release: 22.04
Codename: jammy
check ubuntu version method 2
cat /etc/lsb-release
Typical results:
eric@eric-virtual-machine:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04.3 LTS"
check ubuntu version method 3
$ uname -a
Typical results:
eric@eric-virtual-machine:~$ uname -a
Linux eric-virtual-machine 6.2.0-37-generic #38~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 2 18:01:13 UTC 2 x86_64 x86_64 x86_64 GNU/Linux