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Execute a file (a library function and/or a system call)
In computing, exec is a functionality of an operating system that runs an executable file in the context of an already existing process, replacing the
Exec_(system_call)
In computing, an operation whereby a process creates a copy of itself
process", makes any environment changes the child will need and then calls the exec system call to overlay itself with the new program: it ceases execution of
Fork_(system_call)
Way for programs to access kernel services
in turn execute instructions that invoke the fork and exec system calls. Making the system call directly in the application code is more complicated and
System_call
Topics referred to by the same term
by RotorWay International An abbreviation for executive exec (system call), an operating system function for running a program eval, a programming language
Exec
Programming idiom in Unix
Fork–exec is a commonly used technique in Unix whereby an executing process spawns a new program. fork() is the name of the system call that the parent
Fork–exec
originally called this processor COMMAND, and it was later renamed EXEC. CMS EXEC has been superseded by EXEC 2 and REXX. All three — CMS EXEC, EXEC 2 and
CMS_EXEC
Kernel of AmigaOS
access other libraries. Exec was designed and implemented by Carl Sassenrath. Unlike newer modern operating systems, the exec kernel does not run "privileged"
Exec_(Amiga)
Symbol "#!", used in computing
commands if called from within a Bourne shell. An attempt to directly execute such a file via the operating system's own exec() system call would fail
Shebang_(Unix)
Backup and recovery software from Arctera
Windows Server into the world's dominant client-server operating system, Backup Exec has been one of a handful of technologies to protect it. As the Windows
Backup_Exec
Point in a computer program where instruction-execution begins
descriptive argv[0], usually by means of the exec system call. On GCC and Clang, it is possible to call main(), change its signature, or even select a
Entry_point
Unix shell
Unix's ability to pass long argument lists efficiently through the exec system call that csh uses to execute commands. By contrast, on Windows, wildcard
C_shell
In Unix-like operating systems, dup (short for "duplicate") and dup2 system calls create a copy of a given file descriptor. This new descriptor actually
Dup_(system_call)
Unisys operating system
operating system for the Unisys ClearPath Dorado family of mainframe systems. The operating system kernel of OS 2200 is a lineal descendant of Exec 8 for
OS_2200
Call by which a computer process terminates its execution
On many computer operating systems, a computer process terminates its execution by making an exit system call. More generally, an exit in a multithreading
Exit_(system_call)
bootstrapped, and executed. In Unix (and in Unix-like operating systems), the exec() system call is used to perform chain loading. The program image of the
Chain_loading
Project aiming to reduce the risk of attacks on Linux systems
Exec Shield is a project started at Red Hat, Inc in late 2002 with the aim of reducing the risk of worm or other automated remote attacks on Linux systems
Exec_Shield
IBM mainframe transaction monitor
programs. A typical Command-level call might look like the following: EXEC CICS SEND MAPSET('LOSMATT') MAP('LOSATT') END-EXEC The values given in the SEND
CICS
Aspect of computing history
produced the EXEC I operating system, and Computer Sciences Corporation developed the EXEC II operating system and delivered it to UNIVAC. EXEC II was ported
History_of_operating_systems
Standard UNIX utility
with an error message of "Argument list too long" (meaning that the exec system call's limit on the length of a command line was exceeded): rm /path/* or
Xargs
Job control language for IBM mainframes
one or more "EXEC PGM=" and DD statements and then invoking them with "EXEC PROC=procname" -or- simply "EXEC procname" A facility called a Procedure Library
Job_Control_Language
Operating system for Amiga computers
kernel, called Exec. It includes an abstraction of the Amiga's hardware, a disk operating system called AmigaDOS, a windowing system API called Intuition,
AmigaOS
Linux kernel mechanism
kexec (kernel execute), analogous to the Unix/Linux kernel call exec, is a mechanism of the Linux kernel that allows booting of a new kernel from the
Kexec
Computing process created by another process
of the parent, using the fork system call. The child process can then overlay itself with a different program (using exec) as required. Each process may
Child_process
Core of a computer operating system
When a process requests a service from the kernel, it must invoke a system call, usually through a wrapper function. There are different kernel architecture
Kernel_(operating_system)
Computer environment variable
When a command name is specified by the user or an exec call is made from a program, the system searches through $PATH, examining each directory from
PATH_(variable)
NetBSD file-integrity subsystem
files against their hashes just before they are opened in an exec() or open() system call. When Veriexec is enabled at level 0, the kernel will simply
Veriexec
Operating system focused on disk-based file operations
TSS/370 PRPQ, which is now gone. The EXEC II operating system for the UNIVAC 1107 and 1108, and the EXEC 8 operating system for the 1108, which has evolved
Disk_operating_system
and full-size (8-inch) floppy drives. The Poly disk operating system was called Exec. The three disk drives were distinguished by numbers enclosed in
PolyMorphic_Systems
American data management company
the first commercial journaling file system, VxFS, VxVM, VCS, the personal/small office backup software Backup Exec and the enterprise backup software,
Veritas_Technologies
System software for supercomputers
organization bore strong resemblance to the CDC SCOPE operating system on the CDC 7600 and before that EXEC*8 from CDC's earlier ERA/Univac pedigree. User jobs were
Cray_Operating_System
Type of computer server system
system (BBS), also called a computer bulletin board service (CBBS), is a computer server running software that allows users to connect to the system using
Bulletin_board_system
Function that loads and executes a new child process
fork and exec; however, as these operating systems do not support fork, the spawn function was supplied as a replacement for the fork-exec combination
Spawn_(computing)
TI's embedded devices. TRON – open real-time operating system kernel T-Kernel EXEC I EXEC II EXEC 8/OS 1100/OS 2200 VS/9, successor to RCA TSOS OS/4 for
List_of_operating_systems
Programming language developed for the US Navy
CMS-2 is an embedded systems programming language used by the United States Navy. It was an early attempt to develop a standardized high-level computer
CMS-2
High-level programming language
command is sometimes referred to as an EXEC since that is the name of the file type used for similar CMS EXEC, and EXEC 2 scripts and for Rexx scripts on VM/SP
Rexx
Basic memory management system calls used in Unix
brk and sbrk are basic memory management system calls used in Unix and Unix-like operating systems to control the amount of memory allocated to the heap
Sbrk
operating system. It serves as an intermediary connecting software to hardware, enabling them to work together seamlessly. A comparison of system kernels
Comparison of operating system kernels
Comparison_of_operating_system_kernels
article the terms used are; kernel In some operating systems, the OS is split into a low level region called the kernel and higher level code that relies on
Comparison of operating systems
Comparison_of_operating_systems
American airline based in Texas
as Exec Express Inc. by Phil Trenary (later President of Pinnacle Airlines), the company moved its headquarters to Fort Worth, Texas, in 1987. Exec Express
Lone_Star_Airlines
Sandbox facility for Linux kernel
not virtualize the system's resources but isolates the process from them entirely. seccomp mode is enabled via the prctl(2) system call using the PR_SET_SECCOMP
Seccomp
Operating system memory security feature
feature called DEP (Data Execution Prevention) in Windows XP. Similar features are available for other operating systems, including the PaX and Exec Shield
W^X
Function in a programming language, which evaluates a string
special type such as code (as in Python). The analog for a statement is exec, which executes a string (or code in other format) as if it were a statement;
Eval
2011 studio album by the Dirtball of the Kottonmouth Kings
Nervous System is the fifth solo studio album by American rapper David "The Dirtball" Alexander of the Kottonmouth Kings. It was released on March 1, 2011
Nervous_System_(album)
American health-technology company, 2003–2018
the original on March 12, 2022. Retrieved March 12, 2022. "Former Theranos exec Sunny Balwani convicted of 12 counts of fraud". the Guardian. July 7, 2022
Theranos
Aspect of Unisys 2200 Series
most portions of the operating system. It is saved and restored as part of activity (thread) state. The other set, the Exec registers, is used by interrupt
Unisys 2200 Series system architecture
Unisys_2200_Series_system_architecture
Computer program for sharing resources
a file EXEC Execute a file EXECE Execute a file with an environment FCNTL FSTAT Stat a file using a file descriptor FSTATFS Stat a file system using a
Remote_File_Sharing
Programming language for automation scripts
He originally called this processor COMMAND, later named EXEC. Multics included an offshoot of CTSS RUNCOM, also called RUNCOM. EXEC was eventually replaced
Scripting_language
American actor (1979–2025)
2014). "'Starlet's Sean Baker Sets 'Tangerine' With The Duplass Brothers Exec Producing". Deadline Hollywood. Yamato, Jen (August 13, 2014). "'Sinister
James_Ransone
Global computer systems outage
software. As a result, roughly 8.5 million systems crashed and were unable to properly restart in what has been called the largest outage in the history of
2024 CrowdStrike-related IT outages
2024_CrowdStrike-related_IT_outages
Single-tasking operating system for the Motorola 6800
system. APPEND ASN BACKUP BUILD CAT COPY COPYNEW C4MAT CLEAN DATE DELETE ECHO EXEC FIX GET I JUMP LINK LIST MEMTEST1 MON N NEWDISK O P P.COR PO PRINT PROT PSP
FLEX_(operating_system)
Project for adding Rust language to Linux kernel
Retrieved 16 June 2025. Larabel, Michael. "Microsoft Engineer Ports EXT2 File-System Driver To Rust". phoronix.com. Retrieved 31 August 2024. Corbet, Jonathan
Rust_for_Linux
American identity theft protection software
event". Phoenix Business Journal. Retrieved May 30, 2014. "Former Top Yahoo Exec Hilary Schneider Promoted to CEO of LifeLock". Fortune. Retrieved 2020-02-13
LifeLock
Header file for C programs
ISBN 978-0321637734. Retrieved 27 February 2015. intro(2) – FreeBSD System Calls Manual errno(3) – Linux Programmer's Manual – Library Functions from
Errno.h
American video game developer
make Call of Duty 2, Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2, Call of Duty: Modern Warfare 3, Call of Duty: Ghosts, Call of Duty:
Infinity_Ward
Direct interface to an operating system
be invoked from within a program through standard system functions like system(), popen() and exec() without any user interface being involved. Beyond
Shell_(computing)
Electronic voting systems company
Voting Systems under a new company called Liberty Vote. In May 2010, Dominion acquired Premier Election Solutions, formerly Diebold Election Systems, Inc
Dominion_Voting_Systems
Support programs included in or available for IBM OS/360 and successors
records, and the system will choose the block size for the output: //XXXXXXXW JOB XXXXXXX,AAAA,CLASS=G,MSGCLASS=1,NOTIFY=&SYSUID //STEP001 EXEC PGM=IDCAMS //SYSIN
Support programs for OS/360 and successors
Support_programs_for_OS/360_and_successors
User-definable variable associated with each running process in many operating systems
%LOGIN_NAME%. %MDOS_EXEC% This variable can take the values "ON" or "OFF" under Multiuser DOS. If enabled, the operating system permits applications
Environment_variable
British spy thriller TV series (2022–present)
Star In Spy Drama 'Slow Horses' For Apple With 'Justified's Graham Yost Exec Producing". Deadline Hollywood. Archived from the original on 7 September
Slow_Horses
Shell command for changing access permissions of a file
of the system call to a shell user. As the need for enhanced file-system permissions grew, access-control lists were added to many file systems to augment
Chmod
2025 Android mobile operating system
Retrieved September 12, 2025. Preston, Dominic (July 14, 2025). "Google exec: 'We're going to be combining ChromeOS and Android'". The Verge. Archived
Android_16
Fatal system error screen
below): *** Hardware Malfunction Call your hardware vendor for support NMI: Parity Check / Memory Parity Error *** The system has halted *** Several error
Blue_screen_of_death
Home video game console
game system called Tutorvision. It is a modified Intellivision, the case molded in light beige with gold and blue trim. The Exec ROM expanded, system RAM
Intellivision
Operating system by Digital Equipment Corporation
entered via the command processor, EXEC.EXE JSYS (Jump to System) calls from MACro-language (.MAC) programs The "EXEC" accomplished its work primarily using
TOPS-20
12-race card into 270,000 Pennsylvania homes and complemented the Call-A-Bet system, was introduced. 18% stake of the Meadows Racing Network was later
Xpressbet
Computer operating system
will typically run executables by creating a separate process using fork-exec, an OpenVMS CLI will typically load the executable image into the same process
OpenVMS
Historical account
Operating System". www.frobenius.com. Archived from the original on 21 December 2007. Retrieved 6 November 2017. Gray, George (March 1999). "EXEC II". Unisys
History of IBM mainframe operating systems
History_of_IBM_mainframe_operating_systems
Unix philosophy
alarm()/setitimer() system calls schedule the delivery of a signal after the specified time elapses; this timer is inherited by children, and persists after exec(). The
Everything_is_a_file
Concept in computer security
For legacy CPUs without an NX bit, Exec Shield fails to protect pages below the code segment limit; an mprotect() call to mark higher memory, such as the
Executable-space_protection
the IATA airline designators, the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for
List_of_airline_codes
Software organization of the Michigan Terminal System
execute with the program key *EXEC, but a different program key may be set using the $CONTROL command. Programs may call a system subroutine to shorten the
MTS_system_architecture
"Do nothing" program on IBM mainframes
component of the operating system only accepts single-step jobs, and it fails all multi-step jobs, without exception. //STEP01 EXEC PGM=IEFBR14 At least on
IEFBR14
Free Unix-like operating system kernel
component or feature) it belongs to. For example execve(2) refers to a system call, and exec(3) refers to a userspace library wrapper. The following is an overview
Linux_kernel
American software engineer (born 1961)
America. Retrieved May 15, 2025. Fried, Ina (May 7, 2006). "Former Apple exec joins Tellme board". CNet. Retrieved November 19, 2006. "Leadership Team"
Avie_Tevanian
Stored data in computer systems
ISBN 978-1-61542-394-1. Retrieved 17 September 2019. "Symantec Shows Backup Exec a Little Dedupe Love; Lays out Source Side Deduplication Roadmap – DCIG"
Backup
Computing resource shared by concurrent users
Network) HP 2000 Time-Shared BASIC HP 3000 series MPE IBM CALL/360, CALL/OS - using IBM System/360 Model 50 IBM CP-40 → CP-67 → CP-370 → CP/CMS → VM/CMS
Time-sharing
Computer file system
operating system's *EXEC command. EXEC files are file system independent. There was a variant of the DFS called the DNFS, or Disc/Network Filing System, that
Disc_Filing_System
OASIS operating system OS68 OS4000 RMX-80 System 88 (Exec) System Support Program (IBM System/34 and System/36) TRSDOS Virtual Memory System (VMS) V1.0 (Initial
Timeline_of_operating_systems
Original page rendering engine used by Amazon.com
engine, and appears in many of their URLs such as https://www.amazon.com/exec/obidos/ASIN/0596515162. Obidos was phased out in 2006 and replaced by the
Obidos_(software)
American crime drama television miniseries by HBO
Retrieved June 29, 2016. Stanhope, Kate (July 30, 2016). "The Night Of Exec Producer: 'We're Talking About' a Possible Second Season". The Hollywood
The_Night_Of
Retrieved April 18, 2024. Kroll, Justin (May 28, 2026). "Zac Efron To Star And Exec Produce Angel Heart Series From HBO, A24 And 'Black Rabbit' Creator Zach
List of HBO original programming
List_of_HBO_original_programming
Error notice displayed by the Amiga computer
analogous to the "Blue Screen of Death" in Microsoft Windows operating systems, or a kernel panic in Unix. It has also been used as a message for unrecoverable
Guru_Meditation
Computer operating system
Multi-User Basic and C. A powerful EXEC shell language can be used for task automation or to produce a turnkey system. A number of security features exist
THEOS
List of iOS operating system versions
OS 1 laid the groundwork of the iPhone's operating system, including a grid-based Home Screen called SpringBoard, and a set of 16 built-in apps, including
IOS_version_history
Collection of processes within a computer's operating system
When a process replaces its image with a new image (by calling one of the exec functions), the new image is subjected to the same process group (and thus
Process_group
Range of Windows Mobile PDA phones
3G-enabled model in the xda range. Like the Exec, it will have two CMOS cameras - a VGA camera on the front for video calls, and a 2-megapixel camera on the back
O2_Xda
Extent-based file system
The VERITAS File System (or VxFS; called JFS and OnlineJFS in HP-UX) is an extent-based file system. It was originally developed by VERITAS Software. Through
Veritas_File_System
Criminal fraud case
Balwani found guilty of fraud". Bloomberg. Retrieved July 7, 2022. "Theranos exec Sunny Balwani convicted of fraud". BBC News. July 7, 2022. Retrieved July
Trial_of_Elizabeth_Holmes
October 3, 2022. I did not envisage the sort of console system which is now so confusingly called time-sharing. Corbató, F. J.; Daggett, M. M.; Daley, R
Time-sharing_system_evolution
Cleanup, and Connection Keep Alive. The Professional Edition – now called Norton SystemWorks 2004 Professional – added Norton Ghost, Process Viewer, and
Norton_SystemWorks
Commuter airliner and light transport aircraft
Category" standards. The 1900 entered service in February 1984, with the first ExecLiner corporate version delivered in 1985. A total of 695 Beechcraft 1900
Beechcraft_1900
Hospital network
"Atrium Health forgives patient debts, withdraws liens on 11,500 homes". HealthExec.com. Retrieved September 21, 2024. Morgenson, Gretchen (September 20, 2024)
Atrium_Health
American entrepreneur (born 1977)
2025. "Bryan Johnson on Twitter". Hosie, Rachel (August 8, 2023). "Tech exec Bryan Johnson went from having a 'destroyed' body to spending $2 million
Bryan_Johnson
2024 killing of health insurance executive in New York City
December 13, 2024. McWhirter, Cameron (December 10, 2024). "UnitedHealth Exec Shooting Heightens Debate Over Ghost Guns". The Wall Street Journal. Archived
Killing_of_Brian_Thompson
2025 video game
Retrieved November 5, 2025. Kerr, Chris (September 29, 2026). "Arc Raiders exec says success resulted in burnout". Game Developer. Retrieved October 17,
ARC_Raiders
2024 game show hosted by Rob Lowe
Blockbuster Movies – Mack defeats Landis (Ep. 6) 2 Spiro Hountalas Retired Sales Exec Naperville, Illinois 68 Baseball Logos Cooking 70 36. Baseball Logos – Spiro
The Floor (American game show)
The_Floor_(American_game_show)
Concrete manifestation of an element (type) in computer science
POSIX-oriented operating system, a running process is an instance of a program. It can be instantiated via system calls such as fork() and exec(). Each executing
Instance_(computer_science)
Operating system feature that integrates dynamic libraries into a program at runtime
first in a process address space newly constructed as a result of calling exec or posix_spawn functions. At link time, the path of the dynamic linker that
Dynamic_linker
Online privacy, security, and identity management company
nose and mouth. In the 1990s, Norton provided software to check computer systems for Y2K compliance. In 2017, Symantec acquired the online identity threat
Norton_(software)
Signal in the system bus of an x86-based computer system
MicroSoft PASCAL and programs which use the "Call 5" feature of MS-DOS will fail on the standard 80286 system. [...] For example, no PASCAL programs are
A20_line
travel, tourism, insurance
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
EXEC SYSTEM-CALL
travel, tourism, insurance