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Ghb29: Note about possible syntax confusion with &

2020-02-20T16:43:56Z

Note about possible syntax confusion with &

← Older revision		Revision as of 16:43, 20 February 2020
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	#Backgrounding bg will cause your currently paused process will be restarted in the background.		#Backgrounding bg will cause your currently paused process will be restarted in the background.
	#The & The & symbol at the end of an input will automatically run the program in the background. E.g. qchem ''input'' ''output'' &		#The & The & symbol at the end of an input will automatically run the program in the background. E.g. qchem ''input'' ''output'' &
			#* <code>&</code> ends a command, so you can't use it next to <code>;</code>, which also ends a command. So <code>for i in a b; do echo $i &; done</code> is a syntax error; the semicolon after the <code>&</code> must be deleted.
	#jobs This command shows all the processes running in the background. The id's are given for use with...		#jobs This command shows all the processes running in the background. The id's are given for use with...
	#Foregrounding fg will cause one currently backgrounded process to be brought back the foreground - perhaps to be Ctrl-C killed.		#Foregrounding fg will cause one currently backgrounded process to be brought back the foreground - perhaps to be Ctrl-C killed.

import>Tes36 at 09:07, 21 August 2015

2015-08-21T09:07:42Z

← Older revision		Revision as of 09:07, 21 August 2015
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	Say you run a qchem program. It may go on for some time. During this time it would be nice to be able to continue using your terminal - perhaps tracking the output of the program.		Say you run a qchem program. It may go on for some time. During this time it would be nice to be able to continue using your terminal - perhaps tracking the output of the program.

	#Pausing# Ctrl-Z will pause your current process.		#Pausing Ctrl-Z will pause your current process.
	#Backgrounding# bg will cause your currently paused process will be restarted in the background.		#Backgrounding bg will cause your currently paused process will be restarted in the background.
	#The &# The & symbol at the end of an input will automatically run the program in the background. E.g. qchem ''input'' ''output'' &		#The & The & symbol at the end of an input will automatically run the program in the background. E.g. qchem ''input'' ''output'' &
	#jobs# This command shows all the processes running in the background. The id's are given for use with...		#jobs This command shows all the processes running in the background. The id's are given for use with...
	#Foregrounding# fg will cause one currently backgrounded process to be brought back the foreground - perhaps to be Ctrl-C killed.		#Foregrounding fg will cause one currently backgrounded process to be brought back the foreground - perhaps to be Ctrl-C killed.
	#top# If you lose track of your processes running in the background, perhaps because your connection through ssh was reset, you can see all processes running on the computer with top. From here you can kill processes with 'k' + the PID listed. For more information see the top link under the introduction page.		#top If you lose track of your processes running in the background, perhaps because your connection through ssh was reset, you can see all processes running on the computer with top. From here you can kill processes with 'k' + the PID listed. For more information see the top link under the introduction page.

import>Tes36: Created page with "Say you run a qchem program. It may go on for some time. During this time it would be nice to be able to continue using your terminal - perhaps tracking the output of the prog..."

2015-08-21T09:06:59Z

Created page with "Say you run a qchem program. It may go on for some time. During this time it would be nice to be able to continue using your terminal - perhaps tracking the output of the prog..."

New page

Say you run a qchem program. It may go on for some time. During this time it would be nice to be able to continue using your terminal - perhaps tracking the output of the program.

#Pausing# Ctrl-Z will pause your current process.
#Backgrounding# bg will cause your currently paused process will be restarted in the background.
#The &# The & symbol at the end of an input will automatically run the program in the background. E.g. qchem ''input'' ''output'' &
#jobs# This command shows all the processes running in the background. The id's are given for use with...
#Foregrounding# fg will cause one currently backgrounded process to be brought back the foreground - perhaps to be Ctrl-C killed.
#top# If you lose track of your processes running in the background, perhaps because your connection through ssh was reset, you can see all processes running on the computer with top. From here you can kill processes with 'k' + the PID listed. For more information see the top link under the introduction page.