Re: Howto redirect output from a terminal
Michael Kahle wrote: a terminal in X. As it was running I could see in the terminal window all the status output from the program. Good. This backup job took a long time to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. With some forethought. But not if you just ran it cold. 1. You can redirect the output to a file. Then look at the output of the file remotely. command 21 | tee logfile Then on the remote computer just look at the log file. tail -f logfile or less logfile 2. You can use the 'screen' program to run your command. Screen is a really nice utility that allows you to run a command one place, then pick it up again someplace else. Here is a simple example. screen ...then run commands... On your remote login grab this screen window and see what is happening. screen -d -r ...then see your commands from before... apt-get install screen 3. Use VNC which is a fully graphical version of the above. Which is really describing it too simply but good for now. apt-get install xvncviewer vncserver You will need to read the manuals to really know how to use the above. But perhaps those pointers will be useful. Bob msg27218/pgp0.pgp Description: PGP signature
Re: Howto redirect output from a terminal
-- Michael Kahle [EMAIL PROTECTED] wrote (on Wednesday, 29 January 2003, 10:48 AM -0600): I am not sure how to ask for what I want here. But, here goes. I was using dump to make a backup of a directory on my computer. This was started from a terminal in X. As it was running I could see in the terminal window all the status output from the program. Good. This backup job took a long time to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. redirect output to a file: dump somefile and then you can look at 'somefile' to see what's been happening, or use 'tail -f somefile' to see it happening in 'realtime'. -- Matthew Weier O'Phinney [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
On Wednesday 29 January 2003 10:48 am, Michael Kahle wrote: I am not sure how to ask for what I want here. But, here goes. I was using dump to make a backup of a directory on my computer. This was started from a terminal in X. As it was running I could see in the terminal window all the status output from the program. Good. This backup job took a long time to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. Thanks, Michael two options. the option I think you want is screen. while in an xterm, start screen. Now start executing commands like normal. When you are ready to log out, type CTRL+A, CTRL+D to detach the screen session. Later, when you ssh back into your machine, type screen -r to re-attach that session, just as it was. the second option is to use script. If you just want to capture the output of a program, start script, execute stuff, and then type exit to stop script. All screen ouput was logged to a file in the current directory. -jason pepas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
heya, i'd suggest either nohup or screen. the former is dirt simple but not very featureful, and the second is the opposite. hth sean On Wed, Jan 29, 2003 at 10:48:04AM -0600, Michael Kahle wrote: I am not sure how to ask for what I want here. But, here goes. I was using dump to make a backup of a directory on my computer. This was started from a terminal in X. As it was running I could see in the terminal window all the status output from the program. Good. This backup job took a long time to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. Thanks, Michael -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] msg27246/pgp0.pgp Description: PGP signature
Re: Howto redirect output from a terminal
On Wed, Jan 29, 2003 at 10:48:04AM -0600, Michael Kahle wrote: to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. The usual way that people do this is to either run things in screen and detach/attach sessions, or to redirect output to a file and run tail -f on it. I prefer the second, since it leaves me with a logfile I can check later. -- Michael Heironimus -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
RE: Howto redirect output from a terminal
From: sean finney wrote: heya, i'd suggest either nohup or screen. the former is dirt simple but not very featureful, and the second is the opposite. OK, I just installed screen, very cool program, but not what I am looking for. I need to be able to run a program in a window. Then when later logging into this machine remotely be able to view the output of a program that is running in the X terminal window that I started earlier when I was at the console. Does that make more sense? I read the man page for nohup, this is not going to do what I am asking. Thanks! Michael -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
Michael Kahle wrote: I am not sure how to ask for what I want here. But, here goes. I was using dump to make a backup of a directory on my computer. This was started from a terminal in X. As it was running I could see in the terminal window all the status output from the program. Good. This backup job took a long time to complete and so I went home while the backup was still running. When at home I ssh'd into the box to see if the dump process was still running, it was. Then I got to thinking, how can I see the output of this program in my current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. I use 'screen' for this alot, but you have to start it ahead of time. Screen acts as its own virtual terminal. You start screen from any terminal and it leaves you at a terminal prompt. Now you can do whatever you want (i.e. start your backup). From another terminal (ssh'd in or otherwise) you can cause that screen virtual terminal to be displayed on your new terminal and not the original one. The screen manpage describes all the keystrokes and options required for this. Another great use of screen is to open multiple virtual terminals in a single terminal window. Once I ssh into a machine, I usually start a screen session so I can have multiple terminal windows to work with. That way I don't have to start multiple terminals on my machine and ssh into the target machine individually. - Bobman -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
On Wed, Jan 29, 2003 at 10:48:04AM -0600, Michael Kahle wrote: [snip] current ssh session? Is there a program that exists to allow me to redirect the output of a program running in a terminal to another terminal? I hope I am explaining this clearly. Michael - Take a look at the 'screen' package. Once you've installed it, the important commands are Ctrl-A to create a new screen Ctrl-Space to cycle all available screen Ctrl-d to detach a session So here's how you do it: Start screen run the command you want to monitor Ctrl-d to detach. log off . . log on to the new terminal you want to monitor things from run 'screen -r' .. and there you go, looking at what you just started running. NB Using Ctrl-A to start 2,3,4,5 or more screens is really, _really_ useful! Take a look at it. -- jc I'm big and he's clever -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
RE: Howto redirect output from a terminal
Screen acts as its own virtual terminal. You start screen from any terminal and it leaves you at a terminal prompt. Now you can do whatever you want (i.e. start your backup). From another terminal (ssh'd in or otherwise) you can cause that screen virtual terminal to be displayed on your new terminal and not the original one. The screen manpage describes all the keystrokes and options required for this. Oh! I see how this works now! Slick. Sorry to Sean Finney, I see now what he was trying to explain. Man this is great. Thanks so much!!! Michael -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
Michael, If you start screen, then start your application, you can detach the screen session while leaving your application running and then later, reattach to the same screen session from home. You're app will still be running and you'll be able to see the output. Another solution might be to use the script utility that captures all output to a file: see 'man script' You can then tail -f the file that script is sending its' output to. Steve On Wed, Jan 29, 2003 at 02:18:11PM -0600, Michael Kahle wrote: From: sean finney wrote: heya, i'd suggest either nohup or screen. the former is dirt simple but not very featureful, and the second is the opposite. OK, I just installed screen, very cool program, but not what I am looking for. I need to be able to run a program in a window. Then when later logging into this machine remotely be able to view the output of a program that is running in the X terminal window that I started earlier when I was at the console. Does that make more sense? I read the man page for nohup, this is not going to do what I am asking. Thanks! Michael -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] = Steve Mayer Oracle Corporation Senior Member of Technical Staff1211 SW 5th Ave. Portland Development Center Suite 900 [EMAIL PROTECTED]Portland, OR 97204 Phone: 503-525-3127 = -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
-- Michael Kahle [EMAIL PROTECTED] wrote (on Wednesday, 29 January 2003, 02:18 PM -0600): From: sean finney wrote: heya, i'd suggest either nohup or screen. the former is dirt simple but not very featureful, and the second is the opposite. OK, I just installed screen, very cool program, but not what I am looking for. I need to be able to run a program in a window. Then when later logging into this machine remotely be able to view the output of a program that is running in the X terminal window that I started earlier when I was at the console. Does that make more sense? I read the man page for nohup, this is not going to do what I am asking. You got a few other options, from the responses -- redirect output to a file and run 'tail -f' on it from whatever terminal/window you want. With screen, if you want to login and use a running screen, you simply do a 'screen -D -r' -- this detaches it from the window that was using it and attaches it to the terminal from which you're calling it. You can also attach to the same screen without detaching -- 'screen -ls' tells you the current screen sessions, and you simply attach to the one you need. (I'm writing this from a screen session -- it's nice because it can perpetuate between X sessions, as well -- so if I decide to logout so somebody else can use the computer, I simply detach my screen, logout, and when I log back in, I can re-attach to where I left my work.) -- Matthew Weier O'Phinney [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Howto redirect output from a terminal
(This post is coming from a former athlete) Sometimes watching (reading) how you all do your magic on this list, I think of the things Wayne Gretzky and Michael Jordan used to do. Keep it up debian-users. Good stuff. We are all watching you!!! Andy (watching, reading, and learning Debian) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
