Command List - S

All Command List Linux Started By S

CommandDescription
sane-find-scannerFind SCSI and USB scanner and determine their device files.
sarUsed to monitor Linux system’s resources like CPU usage, Memory utilization, I/O devices consumption, etc..
scanadfRetrieve multiple images from a scanner equipped with an automatic document feeder (ADF).
scanimageRead images from image acquisition devices (scanner or camera) and display on standard output in PNM (Portable aNyMap) format.
scpCopy files between hosts on a network securely using SSH.
screenA window manager that enables multiple pseudo-terminals with the help of ANSI/VT100 terminal emulation.
scriptUsed to make a typescript of everything displayed on the screen during a terminal session.
scriptreplayUsed to replay a typescript/terminal_activity stored in the log file that was recorded by the script command.
sdiffShows two files side-by-side and highlights the differences.
sedStream editor for filtering and transforming text (from a file or a pipe input).
selectSynchronous I/O multiplexing.
sendmailIt’s a mail router or an MTA (Mail Transfer Agent). sendmail support can send a mail to one or more recipients using necessary protocols.
sensorsShows the current readings of all sensor chips.
seqDisplays an incremental sequence of numbers from first to last.
serviceThis command is used to manage system services.
setUsed to manipulate shell variables and functions.
setfdprmSets floppy disk parameters as provided by the user.
setkeycodesLoad kernel scancode-to-keycode mapping table entries.
setledsShow/change LED light settings of the keyboard.
setmetamodeDefine keyboard meta key handling. Without arguments, shows current meta key mode.
setquotaSet disk quotas for users and groups.
setsidRun a program in a new session.
settermSet terminal attributes.
sftpSecure File Transfer program.
shCommand interpreter (shell) utility.
sha1sumCompute and check 160-bit SHA1 checksum to verify file integrity.
shiftShift positional parameters.
shoptShell options.
showkeyExamines codes sent by the keyboard displays them in printable form.
showmountShows information about NFS server mount on the host.
shredOverwrite a file to hide its content (optionally delete it), making it harder to recover it.
shutdownPower-off the machine.
sizeLists section size and the total size of a specified file.
skillSend a signal to processes.
slabtopShow kernel slab cache information in real-time.
slattachAttack a network interface to a serial line.
sleepSuspend execution for a specified amount of time (in seconds).
slocateDisplay matches by searching filename databases. Takes ownership and file permission into consideration.
sniceReset priority for processes.
sortSort lines of text files.
sourceRun commands from a specified file.
splitSplit a file into pieces of fixed size.
ssDisplay socket statistics, similar to netstat.
sshAn SSH client for logging in to a remote machine. It provides encrypted communication between the hosts.
ssh-addAdds private key identities to the authentication agent.
ssh-agentIt holds private keys used for public key authentication.
ssh-keygenIt generates, manages, converts authentication keys for ssh.
ssh-keyscanGather ssh public keys.
sshdServer for the ssh program.
statDisplay file or filesystem status.
statdA daemon that listens for reboot notifications from other hosts, and manages the list of hosts to be notified when the local system reboots.
straceTrace system calls and signals.
strfileCreate a random access file for storing strings.
stringsSearch a specified file and prints any printable strings with at least four characters and followed by an unprintable character.
stripDiscard symbols from object files.
sttyChange and print terminal line settings.
suChange user ID or become superuser.
sudoExecute a command as superuser.
sumChecksum and count the block in a file.
suspendSuspend the execution of the current shell.
swapoffDisable devices for paging and swapping.
swaponEnable devices for paging and swapping.
symlinkCreate a symbolic link to a file.
syncSynchronize cached writes to persistent storage.
sysctlConfigure kernel parameters at runtime.
sysklogdLinux system logging utilities. Provides syslogd and klogd functionalities.
syslogdRead and log system messages to the system console and log files.
systemctlThis command can be used to start, stop, and check the status of system services.