Caution: This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

Keywords - S


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S
character while booting
· QNX 4 filesystem ·

S
file extension
· Filename extensions ·

s (file extension)
· Filename extensions ·

S_IFNAM
· /dev/shmem RAM “filesystem” ·

S_IFREG
· /dev/shmem RAM “filesystem” ·

SAMBA, printing over
· Overview of printing · Using SAMBA ·

sandbox
· Getting files in and out of the repository ·

savercfg
· Configuration tools ·

sbin
· /sbin · /usr ·

_SC_OPEN_MAX
· Configurable limits ·

scanning for consistent data (chkfsys)
· Using chkfsys ·

schtasks (DOS command)
· DOS commands and their Neutrino equivalents ·

screen
clearing
· The keyboard at a glance ·
printing
· Photon environment variables ·

screensavers
· Configuration tools ·

scripts
CGI
· CGI method · Script ·
perl
· Script ·
shell
· Shell scripts · What's a script? ·

Scroll Lock
· Modifying the shelf ·

SCSI (Small Computer Systems Interface)
· CD-ROMs and DVDs · SCSI devices ·

search permission
· File ownership and permissions ·

secondary boot loader
· What happens when you boot? ·

security
CGI scripts
· CGI method ·
firewalls
· Setting up a firewall ·
general
· General OS security ·
inetd
· Running the Internet daemons ·
IPSec
· IPSec ·
message passing
· Message passing ·
Neutrino-specific
· Neutrino-specific security issues ·
password database
· Account database ·
PATH
· Utilities ·
pdebug
· pdebug ·
printing
· Access control ·
protecting encrypted passwords
· Account database ·
qconn
· qconn ·
Qnet
· Qnet · Starting Qnet ·
random numbers for encryption
· /etc/rc.d/rc.sysinit ·
setuid and setgid commands
· Local exploits · Setuid and setgid ·
Trojan-horse programs
· Utilities · Viruses ·
viruses
· Viruses ·
web server
· Security precautions ·

sed
· Available shells ·

seedres
· diskboot ·

self
· /proc ·

sem
· /dev ·

semaphores
limits
· Synchronization primitives ·
named
manager (procnto)
· What happens when you boot? ·
pathname space
· /dev ·

sendmail
· Limitations ·

separators (shelf)
· Modifying the shelf ·

ser
· ISA non-PnP ·

serial mice
· Mice and keyboards · Mice and keyboards ·

serial ports
· /dev · Types of files ·
multiport
· Multiport serial adapters ·
performance
· General serial adapters ·

Server Side Includes
See SSI

servers
CVS
· Setting up a CVS server ·
font
· /dev · Photon environment variables ·
Internet super-server
· Running the Internet daemons ·
Photon
· /dev · Photon environment variables ·
PPPoE
· Using PPPoE ·
running chkfsys on
· When to run chkfsys ·
TCP/IP
· Clients and servers ·
web, embedded
· Running the Internet daemons · Setting Up an Embedded Web Server ·
security
· Security precautions ·

services
· Configuring the Neutrino machine for TCP/IP use · Setting up a CVS server ·

sessions, limits
· Other system limits ·

setconf
· Configuration strings · Setting the time zone ·

setenv()
· Programming with time zones ·

setgid
· Setuid and setgid ·

setrlimit()
· Platform-specific limits · Shared memory ·

setuid
· Local exploits · Setuid and setgid ·

setvbuf()
· Double buffering · Filesystems and block I/O (devb-*) drivers · Throughput ·

sh
· Available shells · Shell ·

See also ksh (Korn shell)


SH-4
directories
· / ·
limits
· Platform-specific limits ·

shadow
· Account database ·
entries
· /etc/shadow ·
users, removing
· Removing accounts ·

share
· /usr ·

shared memory
· /dev ·
limits
· Shared memory ·
procnto
· /dev/shmem RAM “filesystem” ·

shared objects
· /lib · Filename extensions ·

shelf
· Your workspace ·
clock
· Modifying the shelf ·
configuration files
· /etc ·
disabling
· Troubleshooting ·
modifying
· Modifying the shelf ·

shelf.cfg
· Modifying the shelf ·

SHELL
· MS-DOS local command-interpreter variables · What happens when you log in? ·

shells
aliases
· Aliases ·
setting
· $HOME/.profile · .kshrc · ksh's startup file · Troubleshooting ·
command completion
· Command and filename completion ·
command line, interpreting
· Shell ·
commands
builtin
· Utilities ·
finding
· Utilities ·
multiple
· Entering multiple commands ·
recalling
· History: recalling commands ·
configuring
· Configuring your shell ·
debug
· Troubleshooting ·
dot file
· Caveat scriptor ·
embedded
· Available shells ·
fat embedded
· Available shells ·
filename completion
· Command and filename completion ·
functions
· Aliases ·
login program
· /etc/passwd · Adding users · Managing other accounts · Removing accounts · What happens when you log in? ·
non-POSIX
· Troubleshooting ·
prompt, setting
· .kshrc ·
quoting
· Example of a Korn shell script · Quoting special characters ·
redirection
· Redirecting input and output ·
remote
daemon
· Running the Internet daemons ·
scripts
· Shell scripts · What's a script? ·
return codes
· Example of a Korn shell script ·
substitutions
· Substitutions ·
test
· Troubleshooting ·
variables
· Example of a Korn shell script ·
wildcard characters
· Example of a Korn shell script · Filename generation ·
~
· What does a user account do? ·

shells (directory)
· /etc ·

shmem
· /dev/shmem RAM “filesystem” ·

shortcuts, keyboard
· Hotkeys and shortcuts ·

shtml (file extension)
· SSI method ·

shutdown
· Shutting down and rebooting ·
DOS version
· DOS commands and their Neutrino equivalents ·

shutting down
· Shutting down and rebooting ·
unexpectedly
· / ·

signals
SIGINT
· Filters ·
SIGTERM
· Shutting down and rebooting ·

skel
· /etc ·

Slinger
· Running the Internet daemons · Setting Up an Embedded Web Server ·

slogger
· /dev · /etc/system/sysinit · diskboot · UNIX ·

sloginfo
· /dev · diskboot · UNIX ·

Small Computer Systems Interface
See SCSI

SMB (Server Message Block) protocol
· CIFS filesystem ·

snapshot
· Photon environment variables ·

snapshot (Power-Safe filesystem)
· Power-Safe filesystem · Snapshots ·
disabling
· Snapshots ·

SNMP
agent
daemon
· Running the Internet daemons ·
context definitions
· /etc ·
party configuration
· /etc ·
variable names
· /etc ·

snmpd
· Running the Internet daemons ·

so (file extension)
· Filename extensions ·

SOCK
· Running multiple instances of the TCP/IP stack ·

socket.so
NFS
· NFS client ·

sockets
· Types of files ·
TCP/IP
· /dev ·
limits
· TCP/IP limits ·

soft links
See symbolic links

soft modems
· Troubleshooting modems ·

software
flow control
· General serial adapters ·
free
· Technical Support ·
third-party
editors
· Choosing an editor ·
man
· Filename extensions ·
perl
· Available shells ·
troff
· Filename extensions ·

Software Kits (SKs)
· How Neutrino is unique ·

sort
· Pipes ·
DOS version
· DOS commands and their Neutrino equivalents ·

sound card
volume, controlling
· Modifying the shelf ·

space, determining amount free on disk
· Basic commands · Setting up, starting, and stopping a block filesystem ·

spatch
· spatch ·
examining blocks within a file
· Recovering from a bad block in the middle of a file ·

special characters, quoting
· Example of a Korn shell script · Quoting special characters ·

spell (UNIX command)
· UNIX ·

spoofing
· Current Physical Node ID · Promiscuous Mode ·

spooler
· Overview of printing · Printing with spooler ·
configuration files
· Configuration files for spooler ·

spooling
· Overview of printing ·
directories
· Setting up spooler · Spooling directories ·

spreadsheets
· Limitations ·

src
· /usr ·

SSI
· SSI method ·

stack-smashing attack
· Remote exploits ·

standard I/O
performance
· File descriptor vs standard I/O · Throughput ·
redirecting
· Redirecting input and output ·

standards
· UNIX ·

startup
code
· /boot · What happens when you boot? ·
debugging
· /dev ·
Photon
applications, launching
· Starting applications automatically ·
disabling
· /etc · /etc/rc.d/rc.sysinit ·

stat()
· Filesystems and block I/O (devb-*) drivers ·

static routing
· Routing ·

statistics, system
· Getting the system's status · Improving performance ·

status or stat (CVS command)
· Getting information on files ·

status, system
· Getting the system's status ·

statvfs()
· Filesystems and block I/O (devb-*) drivers · Throughput ·

stderr
· Redirecting input and output ·

stdin
· Redirecting input and output ·

stdio.h
· Throughput ·

stdout
· Redirecting input and output ·

sticky bit
· Sticky bit ·

sticky tags (CVS)
· Branching · Removing and restoring files ·

strain, reducing
· Configuration tools ·

stream editor (sed)
· Available shells ·

strftime()
· Programming with time zones ·

stty
· General serial adapters · I/O attributes · Testing modems ·

su
· Removing accounts ·

SuperDisk drives
· LS-120 ·

superuser
See root

support, technical
· Technical Support ·

supported hardware
· Introduction ·

symbolic links
· Symbolic links ·
cd command and
· A note about cd ·
removing
· Symbolic links ·

SYMLOOP_MAX
· Symbolic links ·

sync()
· Configuration · Snapshots ·

sys
· /usr ·

sysconf()
· Configurable limits ·

sysinit
· /etc/system/sysinit · Creating useqnet · Device enumeration · diskboot ·

SYSNAME
· /etc/profile ·

system
administrator

See root

initialization, local
· /etc/rc.d/rc.sysinit ·
chkfsys
· When to run chkfsys ·
limits
· Other system limits ·
logger
· /dev · /etc/system/sysinit · diskboot ·
page, initializing
· What happens when you boot? ·
rebooting
· Shutting down and rebooting ·
recovering data after crash
· When to run chkfsys ·
shutting down
· Shutting down and rebooting ·
size, reducing
· How small can you get? ·
starting
· Controlling How Neutrino Starts ·
troubleshooting
· Troubleshooting ·
statistics
· Getting the system's status · Improving performance ·
status
· Getting the system's status ·
rwhod daemon
· Running the Internet daemons ·
troubleshooting boot failure
· What to do if your system will no longer boot ·

System Builder perspective (IDE)
· How small can you get? ·

SYSTEMDRIVE (DOS variable)
· MS-DOS local command-interpreter variables ·

SYSTEMROOT (DOS variable)
· MS-DOS local command-interpreter variables ·

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