Laravel Dev Diary

1:  I/usr The /usr mean in Linux is nothing but a directory which usually called as "User Programs". It comprises with several sub-directories and that contains binary files, lib files, doc files and the source code. /usr/bin which contains all the binary files for the user related programs. In some distors we cannot find the root directory of bin which is usually comes under "/bin", hence you can look into the /usr/bin. Eg: at, curl, dd, df ,etc /usr/sbin which also contains the binary file for the Administrators. Means for any system related commands can be find under this directory. Eg: fdisk, cron, ip6tables, lsmod , etc. /usr/lib which contains all the libraries for the /usr/bin and /usr/sbin /usr/local which contains the users related programs, which means when you install anything from the source it may goes directly to the /usr/local/xxxx 2:  /var https://www.javatpoint.com/linux-fhs-variable-directory#:~:text=Variable%20Directory%20(%2Fvar),spool%20files%20...

Linux History

  Linux Commands 1.  OS-Release -cat /etc/os-release -cat /etc/redhat-release show os //kernal information -uname  show kernal middleware It is intermediator between hardware and software. -uname  -r what is process architect. -uname -p To show all information -uname -a 2.  Date-CAL -date -cal 3.  Booting in Linux (Run-Levels) Shutdown/Close pc -init 0  Single user mode -init 1 Multiple user mode -init 2 Multiple user mode with network plus full support Not use -init 4 Graphical mode init 5 Reboot the system -init 6 4.  Target command in Linux (systemctl) With the help of target we can manage system specific as well as user specific task. Target command is system Control (systemctl). Basically it is utility, which build to replace 'init' command. What systemctl can do ?  We can find its all commands with the help of single command. write systemctl enter twice TAB button. //it will list all its commands. Show current system mode - systemctl...