STW TC1, User Manual

Page: 74 / 374

6 Software
User Manual 74/374
/sbin
– System Binaries

Contains binary executables like /bin.

The linux commands located under this directory are used typically by the system administrator for system
maintenance purpose. For example: iptables, reboot, fdisk, ifconfig
/srv
– Service Data
Contains server specific and services related data.
/sys
– System information

Modern Linux distributions include a /sys directory as a pseudo filesystem (sysfs, comparable to /proc),
which stores and allows modification of the devices connected to the system.

Many traditional Unix and Unix-like operating systems use /sys as a symbolic link to the kernel source tree.
/tmp
– Temporary Files

Contains temporary files created by system and users.

Files in this directory are deleted when system is rebooted.
/usr
– User Programs

Contains binaries, libraries, documentation, and source-code for second level programs.

/usr/bin contains binary files for user programs. If a user binary cannot be found under /bin, it might be
under /usr/bin. For example: at, awk, chat, less

/usr/sbin contains binary files for system administrators. If a system binary cannot be found under /sbin, it
might be under /usr/sbin. For example: ftpd, httpd

/usr/lib contains libraries for /usr/bin and /usr/sbin

/usr/local contains user programs that are installed from source.
/var
– Variable Files

Contains files with expected increasing size (content).

Example: System log files (/var/log); packages and database files (/var/lib); lock files (/var/lock); temp files
needed across reboots (/var/tmp);