Linux File System

Linux File System and most common commands

Linux file system

Directories Purpose
/usr This is where most executable binaries, the kernel source tree and much documentation gp
/var This is where spool directories such as those for mail and pronting go. It also contains the error log directory
/tmp Temporary data files stored by apps
/boot Where your kernel images and boort loader configuration go
/home This is where users home directories go

fstab static file system information

cat etc/fstab

Partition utilisation

df disk free

df -h

Mount point

The mount command attaches a file system to a mount point

Remount /usr in read only

mount -o remount , ro /usr

Mount all file system in /etc/fstab

mount -a


File and directory commands

Command Description
ls List the content of a directory
cd Change directory
mkdir Create directory
rmdir Remove directory
cp Copy file
mv Move file
rm Remove file
pwd Print the present directory
file Print the presumed type of a file
chmod Change the permission attributes of a file