Author: Linux Manual

systemd.environment-generator – systemd environment file generators Synopsis /lib/systemd/system-environment-generators/some-generator /usr/lib/systemd/user-environment-generators/some-generator /run/systemd/system-environment-generators/* /etc/systemd/system-environment-generators/* /usr/local/lib/systemd/system-environment-generators/* /lib/systemd/system-environment-generators/* /run/systemd/user-environment-generators/* /etc/systemd/user-environment-generators/* /usr/local/lib/systemd/user-environment-generators/* /usr/lib/systemd/user-environment-generators/* Description Generators are small executables that live in /lib/systemd/system-environment-generators/ and other directories listed above. systemd(1) will execute those binaries very early at the startup of each manager and at configuration reload time, before running the generators described in…

systemd.directives – Index of configuration directives Unit Directives Directives for configuring units, used in unit files. Accept= systemd.socket(5) AccuracySec= systemd.timer(5) After= systemd.unit(5) Alias= systemd.unit(5) AllowIsolate= systemd.unit(5) AllowedCPUs= systemd.resource-control(5) AllowedMemoryNodes= systemd.resource-control(5) Also= systemd.unit(5) AmbientCapabilities= systemd.exec(5) AppArmorProfile= systemd.exec(5) AssertACPower= systemd.unit(5) AssertArchitecture= systemd.unit(5) AssertCPUs= systemd.unit(5) AssertCapability= systemd.unit(5) AssertControlGroupController= systemd.unit(5) AssertDirectoryNotEmpty= systemd.unit(5) AssertEnvironment= systemd.unit(5) AssertFileIsExecutable= systemd.unit(5) AssertFileNotEmpty= systemd.unit(5) AssertFirstBoot=…

systemd-boot, sd-boot – A simple UEFI boot manager Description systemd-boot (short: sd-boot) is a simple UEFI boot manager. It provides a graphical menu to select the entry to boot and an editor for the kernel command line. systemd-boot supports systems with UEFI firmware only. systemd-boot loads boot entry information from the EFI system partition (ESP),…

system_data_types – overview of system data types Description aiocb Include: <aio.h>. struct aiocb { int aio_fildes; /* File descriptor */ off_t aio_offset; /* File offset */ volatile void *aio_buf; /* Location of buffer */ size_t aio_nbytes; /* Length of transfer */ int aio_reqprio; /* Request priority offset */ struct sigevent aio_sigevent; /* Signal number and…

SynCE – A project for connecting to devices running Microsoft Windows Mobile. Description The SynCE project aims to provide libraries and tools to connect to and synchronise with PDA’s and other devices running Microsoft Windows Mobile, or Windows CE. The main components include :- libsynce Core library that provides various support services and functions. librapi2…

symlink – symbolic link handling Description Symbolic links are files that act as pointers to other files. To understand their behavior, you must first understand how hard links work. A hard link to a file is indistinguishable from the original file because it is a reference to the object underlying the original filename. (To be…

sysvipc – System V interprocess communication mechanisms Description System V IPC is the name given to three interprocess communication mechanisms that are widely available on UNIX systems: message queues, semaphore, and shared memory. Message queues System V message queues allow data to be exchanged in units called messages. Each messages can have an associated priority,…

svgalib.mach32 – Information on the Mach32 chipset driver Table Of Contents 0. Introduction 1. Specifying pixel clocks 2. Copyrights 3. The mach32info utility 4. Third party cards 5. Logical line width 6. Noisy video signals 7. The configuration EEPROM 8. EEPROM woes 9. The Mach32Eeprom command 10. Setup of the memory aperture (linear framebuffer) 11….

suffixes – list of file suffixes Description It is customary to indicate the contents of a file with the file suffix, which (typically) consists of a period, followed by one or more letters. Many standard utilities, such as compilers, use this to recognize the type of file they are dealing with. The make(1) utility is…

stopping – event signalling that a job is stopping Synopsis stopping JOB=JOB INSTANCE=INSTANCE RESULT=RESULT [PROCESS=PROCESS] [EXIT_STATUS=STATUS] [EXIT_SIGNAL=SIGNAL] [ENV]… Description The stopping event is generated by the Upstart init(8) daemon when an instance of a job begins stopping. The JOB environment variable contains the job name, and the INSTANCE environment variable contains the instance name which…

stopped – event signalling that a job has stopped Synopsis stopped JOB=JOB INSTANCE=INSTANCE RESULT=RESULT [PROCESS=PROCESS] [EXIT_STATUS=STATUS] [EXIT_SIGNAL=SIGNAL] [ENV]… Description The stopped event is generated by the Upstart init(8) daemon when an instance of a job has stopped. The JOB environment variable contains the job name, and the INSTANCE environment variable contains the instance name which…

stonithd – Options available for all stonith resources Synopsis [priority=integer] [pcmk_host_argument=string] [pcmk_host_map=string] [pcmk_host_list=string] [pcmk_host_check=string] [pcmk_delay_max=time] [pcmk_action_limit=integer] [pcmk_reboot_action=string] [pcmk_reboot_timeout=time] [pcmk_reboot_retries=integer] [pcmk_off_action=string] [pcmk_off_timeout=time] [pcmk_off_retries=integer] [pcmk_list_action=string] [pcmk_list_timeout=time] [pcmk_list_retries=integer] [pcmk_monitor_action=string] [pcmk_monitor_timeout=time] [pcmk_monitor_retries=integer] [pcmk_status_action=string] [pcmk_status_timeout=time] [pcmk_status_retries=integer] Description This is a fake resource that details the instance attributes handled by stonithd. Supported Parameters priority = integer [0] The priority of the…

startup – event signalling system startup Synopsis startup [ENV]… Description The startup event is generated by the Upstart init(8) daemon after it has completed its own initialisation and is the signal that the rest of the system may be started. Typically this will involve checking and mounting the partitions and drives that form the filesystem,…

starting – event signalling that a job is starting Synopsis starting JOB=JOB INSTANCE=INSTANCE [ENV]… Description The starting event is generated by the Upstart init(8) daemon when a new instance of a job begins starting. The JOB environment variable contains the job name, and the INSTANCE environment variable contains the instance name which will be empty…

started – event signalling that a job is running Synopsis started JOB=JOB INSTANCE=INSTANCE [ENV]… Description The started event is generated by the Upstart init(8) daemon when an instance of a job has finished starting and is now running. The JOB environment variable contains the job name, and the INSTANCE environment variable contains the instance name…

stappaths – systemtap configurable file paths Description This manual page was generated on 2017-08-03 for systemtap 3.1. The following section will list the main paths in systemtap that are important to know and may be required to reference. /usr/share/systemtap/tapset/ The directory for the standard probe-alias / function tapset library, unless overridden by the SYSTEMTAP_TAPSET environment…

spufs – SPU filesystem Description The SPU filesystem is used on PowerPC machines that implement the Cell Broadband Engine Architecture in order to access Synergistic Processor Units (SPUs). The filesystem provides a name space similar to POSIX shared memory or message queues. Users that have write permissions on the filesystem can use spu_create(2) to establish…

SoX – Sound eXchange, the Swiss Army knife of audio manipulation Description This manual describes SoX supported file formats and audio device types; the SoX manual set starts with sox(1). Format types that can SoX can determine by a filename extension are listed with their names preceded by a dot. Format types that are optionally…

socket – Linux socket interface Synopsis #include <sys/socket.h> sockfd = socket(int socket_family, int socket_type, int protocol); Description This manual page describes the Linux networking socket layer user interface. The BSD compatible sockets are the uniform interface between the user process and the network protocol stacks in the kernel. The protocol modules are grouped into protocol…

socket – event signalling that a socket connection has been made Synopsis socket PROTO=PROTO PORT=PORT ADDR=ADDR socket PROTO=PROTO SOCKET_PATH=PATH Description The socket event is generated by the upstart-socket-bridge(8) daemon when a socket connection is made whose details match the socket event condition and environment specified in a jobs start on or stop on stanza. When…