General UNIX info - Revision history

imported>Huston: No more condor pool

2023-03-13T14:26:46Z

No more condor pool

← Older revision		Revision as of 14:26, 13 March 2023
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	There's a few guidelines for running a time-consuming program. First, these such jobs should only be submitted to servers, not workstations (the distinction being a workstation can and/or will have someone logged into the console of it, using the machine, while a server does not allow console logins). This is so that you don't make the machine unusable for people logged into the console trying to do work locally.		There's a few guidelines for running a time-consuming program. First, these such jobs should only be submitted to servers, not workstations (the distinction being a workstation can and/or will have someone logged into the console of it, using the machine, while a server does not allow console logins). This is so that you don't make the machine unusable for people logged into the console trying to do work locally.

	We have [http://www.astro.princeton.edu/private/machines.php a list of available machines]. Please note the 'Primary User' field, if it's not "dept", please contact the user in question before using that machine. If it '''is''' "dept" and you want to be sure, contact help. As of this writing, coma.astro.princeton.edu and armstrong.astro.princeton.edu are the two best shared resources in the department. If you want to be even nicer, have a look at [[Condor]], which is also more useful if you have a lot of programs to run instead of a single long one.		We have [http://www.astro.princeton.edu/private/machines.php a list of available machines]. Please note the 'Primary User' field, if it's not "dept", please contact the user in question before using that machine. If it '''is''' "dept" and you want to be sure, contact help.


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	But what if you've already submitted the job, and decide you want to change its priority? Use the 'renice' command: '<tt>renice -p (process ID) +19</tt>'. This will change the priority of the mentioned process ID to 19. You can also make a process less nice, by changing its priority to zero (0). This will make it run with normal priority. Only root can change a priority to below zero (which will make it run faster than other processes, since it has a higher scheduling priority).		But what if you've already submitted the job, and decide you want to change its priority? Use the 'renice' command: '<tt>renice -p (process ID) +19</tt>'. This will change the priority of the mentioned process ID to 19. You can also make a process less nice, by changing its priority to zero (0). This will make it run with normal priority. Only root can change a priority to below zero (which will make it run faster than other processes, since it has a higher scheduling priority).


	~~=== ...using Condor ===~~
	Condor is a batch scheduling system which is perfect for single processor "serial" jobs. It allows you to submit jobs to be run, and will farm them out to idle processors in the department as it finds room.

	~~[[Condor]] has it's [[Condor\|own topic]].~~

imported>Lkoven: Looks like C-x C-r causes readline to reload inputrc

2008-02-06T18:46:26Z

Looks like C-x C-r causes readline to reload inputrc

← Older revision		Revision as of 18:46, 6 February 2008
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	== Trailing slash when using tab-completion of symlinks in bash ==		== Trailing slash when using tab-completion of symlinks in bash ==
	In older version of bash, when you used tab-completion to complete the name of a symlink which points to a directory, it used to append a slash ("/") to the end of the filename. It no longer does this. If you'd like to return to the old behavior, edit your ~/.inputrc file and add  <tt>set mark-symlinked-directories on</tt>  to it. ~~Log out~~ of ~~your shell and log back in and it should enable that functionality~~.		In older version of bash, when you used tab-completion to complete the name of a symlink which points to a directory, it used to append a slash ("/") to the end of the filename. It no longer does this. If you'd like to return to the old behavior, edit your ~/.inputrc file and add  <tt>set mark-symlinked-directories on</tt>  to it. Once edited, it will change at your next instantiation of bash. You can also just hit Control-x then Control-r to force bash (readline, actually) to reload the .inputrc file immediately.


	[[Category:Unix Commands]]		[[Category:Unix Commands]]

imported>Lkoven: Added tip for slash at the end of symlink directories

2008-02-06T18:40:57Z

Added tip for slash at the end of symlink directories

← Older revision		Revision as of 18:40, 6 February 2008
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	== Stray ^Ms ==		== Stray ^Ms ==
	Here's a couple way to get rid of stray ^Ms at the end-of-line in files that came to Unix from Macintosh or other systems. According to Simon Dedeo, <tt>tr '\015' '\012' < draft.tex > draftnew.tex</tt> works well. Robert chimed in with a Perlish way: <tt>perl -pi -e 'tr/\015/\012/' draft.tex</tt> or <tt>perl -pi -e 's/\015/\012/' draft.tex</tt> as it can be done in place (no need for draftnew.tex).		Here's a couple way to get rid of stray ^Ms at the end-of-line in files that came to Unix from Macintosh or other systems. According to Simon Dedeo, <tt>tr '\015' '\012' < draft.tex > draftnew.tex</tt> works well. Robert chimed in with a Perlish way: <tt>perl -pi -e 'tr/\015/\012/' draft.tex</tt> or <tt>perl -pi -e 's/\015/\012/' draft.tex</tt> as it can be done in place (no need for draftnew.tex).


			== Trailing slash when using tab-completion of symlinks in bash ==
			In older version of bash, when you used tab-completion to complete the name of a symlink which points to a directory, it used to append a slash ("/") to the end of the filename. It no longer does this. If you'd like to return to the old behavior, edit your ~/.inputrc file and add  <tt>set mark-symlinked-directories on</tt>  to it. Log out of your shell and log back in and it should enable that functionality.


	[[Category:Unix Commands]]		[[Category:Unix Commands]]

imported>Huston: Think the oldfaq tag can go now

2007-05-17T18:47:59Z

Think the oldfaq tag can go now

← Older revision		Revision as of 18:47, 17 May 2007
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	~~{{oldfaq\|NUM=45}}~~
	Here you'll find more generalized UNIX information, such as shells, common programs, etc.		Here you'll find more generalized UNIX information, such as shells, common programs, etc.

imported>Huston at 18:04, 16 May 2007

2007-05-16T18:04:21Z

← Older revision		Revision as of 18:04, 16 May 2007
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	=== [[Tarballs]] ===		=== [[tar\|Tarballs]] ===
	[[~~Tarballs~~\|Tape ARchive]] files, otherwise known as 'tar' files or 'tarballs' are used to pack files together for transport, whether that be across a network or via [http://en.wikipedia.org/wiki/Sneakernet Sneakernet].		[[tar\|Tape ARchive]] files, otherwise known as 'tar' files or 'tarballs' are used to pack files together for transport, whether that be across a network or via [http://en.wikipedia.org/wiki/Sneakernet Sneakernet].

imported>Huston: Added Local installs link

2007-05-15T19:16:31Z

Added Local installs link

Show changes

imported>Huston at 16:00, 15 May 2007

2007-05-15T16:00:13Z

← Older revision		Revision as of 16:00, 15 May 2007
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	An added benefit of O'Reilly books is that Princeton has a site license for the [http://proquest.safaribooksonline.com/ Safari Online] system. This means that if you're using a computer on the Princeton campus, you can read many O'Reilly books online, without borrowing a copy from the library or purchasing a copy. If there is a box on the left side of the page that says "Search on Safari" and contains a link for the book title, you can click on the link to start reading the book online.		An added benefit of O'Reilly books is that Princeton has a site license for the [http://proquest.safaribooksonline.com/ Safari Online] system. This means that if you're using a computer on the Princeton campus, you can read many O'Reilly books online, without borrowing a copy from the library or purchasing a copy. If there is a box on the left side of the page that says "Search on Safari" and contains a link for the book title, you can click on the link to start reading the book online.


	==More in-depth topics==		==More in-depth topics==
	These topics are broad enough to warrant their own pages		These topics are broad enough to warrant their own pages. For more information, also see the categories [[:Category:Unix Commands\|Unix Commands]] and [[:Category:Software\|Software]].


	===[[SSH]]===		===[[SSH]]===

imported>Huston: Cleanup (so I'm picky)

2007-05-11T17:05:12Z

Cleanup (so I'm picky)

Show changes

imported>Lkoven: Suppose it'd help to remove the inuse tag too...

2007-05-11T16:21:30Z

Suppose it'd help to remove the inuse tag too...

← Older revision		Revision as of 16:21, 11 May 2007
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	~~{{inuse}}~~
	{{oldfaq\|NUM=45}}		{{oldfaq\|NUM=45}}
	Here you'll find more generalized UNIX information, such as shells, common programs, etc.		Here you'll find more generalized UNIX information, such as shells, common programs, etc.

imported>Lkoven: Added a link to Safari Books Online

2007-05-11T16:20:49Z

Added a link to Safari Books Online

← Older revision		Revision as of 16:20, 11 May 2007
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	*[http://www.oreilly.com/catalog/vi6 Learning the vi editor, Sixth Edition]		*[http://www.oreilly.com/catalog/vi6 Learning the vi editor, Sixth Edition]

	An added benefit of O'Reilly books is that Princeton has a site license for the Safari Online system. This means that if you're using a computer on the Princeton campus, you can read many O'Reilly books online, without borrowing a copy from the library or purchasing a copy. If there is a box on the left side of the page that says "Search on Safari" and contains a link for the book title, you can click on the link to start reading the book online.		An added benefit of O'Reilly books is that Princeton has a site license for the [http://proquest.safaribooksonline.com/ Safari Online] system. This means that if you're using a computer on the Princeton campus, you can read many O'Reilly books online, without borrowing a copy from the library or purchasing a copy. If there is a box on the left side of the page that says "Search on Safari" and contains a link for the book title, you can click on the link to start reading the book online.

	==More in-depth topics==		==More in-depth topics==