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Learn How to Teach the Wait Command
Learn How to Teach the Wait Command
Published: 2012/08/28
Channel: Nylabone Products - Dog Chews, Toys & Treats!
Five Rottweilers Wait For Command to Eat
Five Rottweilers Wait For Command to Eat
Published: 2017/04/17
Channel: DailyPicksandFlicks
Perfectly Trained Shiba Inus Wait For Command to Eat (Storyful, Dogs)
Perfectly Trained Shiba Inus Wait For Command to Eat (Storyful, Dogs)
Published: 2017/06/01
Channel: Storyful
Obedient American Pit Bulls Wait for Command to Eat in Thailand
Obedient American Pit Bulls Wait for Command to Eat in Thailand
Published: 2018/02/13
Channel: Storyful Rights Management
Amber Toy Poodle  - Cappi - Wait Command
Amber Toy Poodle - Cappi - Wait Command
Published: 2014/03/25
Channel: Amber Red Toy Poodle
The Wait command
The Wait command
Published: 2013/05/13
Channel: Community Canine
Pitbull 2 month puppy training wait command
Pitbull 2 month puppy training wait command
Published: 2009/02/26
Channel: paigow66
Basic Dog Training : Dog Training: Wait Command
Basic Dog Training : Dog Training: Wait Command
Published: 2008/07/31
Channel: expertvillage
CPC Wait Command
CPC Wait Command
Published: 2017/03/21
Channel: Suzi Schaefers
SGP: Wait Command
SGP: Wait Command
Published: 2013/06/25
Channel: Pat B. Mitchell
Border Collie Obeys Wait Command For 6 Minutes
Border Collie Obeys Wait Command For 6 Minutes
Published: 2011/06/18
Channel: reggiefavre
Wait command
Wait command
Published: 2015/12/21
Channel: G-Retrieverz Channel
Wait Command
Wait Command
Published: 2017/12/02
Channel: Marshall
Alice wait command
Alice wait command
Published: 2015/12/14
Channel: Carol Ferraro Vaspol
Kai - wait command
Kai - wait command
Published: 2015/06/08
Channel: Kai Barber
Vex Robotc 4.x : 02 : Setup Motors and Wait Command
Vex Robotc 4.x : 02 : Setup Motors and Wait Command
Published: 2017/12/04
Channel: Education Public
dogs wait for the command to eat
dogs wait for the command to eat
Published: 2015/03/01
Channel: JR videos
Tasker Demo: Timer with remaining time (without the WAIT command)
Tasker Demo: Timer with remaining time (without the WAIT command)
Published: 2014/03/23
Channel: Ryoen Deprouw
Watch Marley execute the "WAIT" command.
Watch Marley execute the "WAIT" command.
Published: 2017/11/01
Channel: Marley Malinois
TTB#23 - Wait... are those Spheres? - Minecraft Command Pack
TTB#23 - Wait... are those Spheres? - Minecraft Command Pack
Published: 2017/03/27
Channel: Jragon // Learn How To Make Minecraft Commands
The "Wait" Command
The "Wait" Command
Published: 2017/06/21
Channel: Kym Ann Dabideen-Denton
C++ | Sleep (Wait) Command + Clear Screen Command
C++ | Sleep (Wait) Command + Clear Screen Command
Published: 2013/08/20
Channel: EverythingC++
Sit wait command training for puppies
Sit wait command training for puppies
Published: 2011/02/03
Channel: TheDoggieSpot
K9 Click tricks Dog obedience Wait command with distance
K9 Click tricks Dog obedience Wait command with distance
Published: 2012/10/29
Channel: k9clicktricks
Wait Vs. Stay Command with Michael Ellis
Wait Vs. Stay Command with Michael Ellis
Published: 2014/11/06
Channel: Leerburg
WAIT Command
WAIT Command
Published: 2016/01/24
Channel: Lori Knisely
Puppies learning "Wait" command
Puppies learning "Wait" command
Published: 2013/11/18
Channel: Bark N Bond
2 month pitbull puppy training sit, stay and wait command
2 month pitbull puppy training sit, stay and wait command
Published: 2009/02/28
Channel: paigow66
Delilah -
Delilah - 'Wait' Command
Published: 2013/07/31
Channel: Sierra N
The Wait Command
The Wait Command
Published: 2009/06/15
Channel: dogasaur
Tek Wait Command
Tek Wait Command
Published: 2012/07/01
Channel: Ken Banks
Learning Minecraft Command Block Programming, Part 7 - Time delays
Learning Minecraft Command Block Programming, Part 7 - Time delays
Published: 2015/09/16
Channel: lorgon111 - Brian's Minecraft & More!
Clicker training - wait command 👊
Clicker training - wait command 👊
Published: 2017/03/18
Channel: The Life Of Bear
Wait Command
Wait Command
Published: 2015/04/29
Channel: Jenn Dearborn
The
The 'Wait' Command
Published: 2018/01/02
Channel: Alexa H
Dog obedience: wait command
Dog obedience: wait command
Published: 2011/12/08
Channel: seaminem
Aari - Practicing the wait command
Aari - Practicing the wait command
Published: 2017/01/24
Channel: Pradeep Mantena
Teaching wait command
Teaching wait command
Published: 2014/08/01
Channel: Tori Smith
Teaching the Wait Command to Your Dog
Teaching the Wait Command to Your Dog
Published: 2011/05/24
Channel: jill breitner
MustLuvBoxers Rescue - "Wait" Command Demonstration
MustLuvBoxers Rescue - "Wait" Command Demonstration
Published: 2016/08/09
Channel: MustLuvBoxers Rescue
Puppy Training: Adding the Wait Command, English Toy Spaniel (aka King Charles Spaniel)
Puppy Training: Adding the Wait Command, English Toy Spaniel (aka King Charles Spaniel)
Published: 2016/04/22
Channel: Life With My Dogs: Denise & The Misters
Zihna wait command
Zihna wait command
Published: 2010/12/02
Channel: Zihna S.
Pitbull puppies -wait command
Pitbull puppies -wait command
Published: 2014/06/24
Channel: Omni
Delay Command Blocks - Map-Maker Module
Delay Command Blocks - Map-Maker Module
Published: 2016/01/16
Channel: Energyxxer
Wait command
Wait command
Published: 2014/08/19
Channel: Julia Taylor
The Wait Command:  Proofing and Practicing with Increased Difficulty
The Wait Command: Proofing and Practicing with Increased Difficulty
Published: 2017/09/10
Channel: Gold Star Dog Training VT
The
The 'Wait' Command
Published: 2018/01/02
Channel: Alexa H
Fighting The Urge - Wait Command
Fighting The Urge - Wait Command
Published: 2011/10/13
Channel: bellathebluenose
Fluffy wait command by Sarah
Fluffy wait command by Sarah
Published: 2017/04/29
Channel: Boj
Teaching the "wait" command
Teaching the "wait" command
Published: 2017/03/11
Channel: Rosemary O' Keeffe
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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In computing, wait is a command which pauses until execution of a background process has ended.

Usage[edit]

 wait [n]

where n is the pid or job ID of a currently executing background process (job). If n is not given, the command waits until all jobs known to the invoking shell have terminated.

wait normally returns the exit status of the last job which terminated. It may also return 127 in the event that n specifies a non-existent job or zero if there were no jobs to wait for.

Because wait needs to be aware of the job table of the current shell execution environment, it is usually implemented as a shell builtin.

Example[edit]

This command can be useful where part of a script can execute in parallel to implement a barrier where an upcoming section depends on the successful completion of the preceding sections.

The following example will fetch the src/ directory from a machine named iona using rsync and simultaneously update the libraries on which this program depends, before building the combination.

#!/usr/bin/env bash

# Parallel update script which makes use of the wait command

# Update local copy
rsync iona:src/ . &
# Upgrade required libraries, or exit indicating failure if make failed for some reason
make -C lib || exit 1

# Wait for rsync to terminate (may have already happened) and finish the job, unless rsync failed
wait && make

Wait for specified job control id number:

$ ls -R / > /dev/null 2>&1 & # start any long running background process
[2] 1986
$ wait %2 # waits for background job number 2 to terminate, then returns

See also[edit]

External links[edit]

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