am facing a problem with tailing a log file. Logs of application located in one folder:applog_20100101_0200.log <--log until 2 am january 1applog_20100101_0456.log <--log until 4:56 amapplog.log <-- current logApplication can change log when ever it wants to. I need to monitor this log, what i do:tail -f applog.logBut when app changes log my tail just stops. How can i tail applog.log all the time with out stops?
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I was recently looking into using tail -f to monitor some text files like so: tail -f /var/sometext However, when I did some testing, it doesn't seem to work. What I did was I created a new file and ran: tail -f /home/name/text Then, I opened the log in vim and did some editing, saved it, and it seems that tail is not "seeing" the change.
The weird thing is, running echo "hello" >> /home/name/text seems to work fine (tail sees the change). I read somewhere this has something to do with file descriptors and new inodes being created when saving a file.
I want to tail the latest log file in one command line. I dont know what command/option to use for the same.
View 5 Replies View RelatedI need to printout auth.log each line by log event, I think it should be running using the following command:
~# tail -f /var/log/auth.log | lpr
but it's not, why?
the lpr package already is installed in myserver, there is no problem to print directly.
~# cat /var/log/auth.log | lpr
Installed Fedora 12 in vmware and during the installation of a professional program versioned 2003, following error encountered.
tail: cannot open `+124' for reading: No such file or directory
gzip: tmptarfile.tar.Z: not in gzip format
tar: This does not look like a tar archive
tar: Error exit delayed from previous errors
extract error, installation cannot proceed.
Checked the google and tried ncompress and export_posix2_version=199209, but the problem persists.Is fedora compatible to this program, MEDICI 2003 ver?
How can I make a changeable background in my ubuntu?
View 5 Replies View RelatedI am trying to use tail -f and play a sound everytime a new line appears. I tried this: for i in tail -f myFile; do aplay alert.wav; done; Which kinda worked, the output is:
Playing WAVE 'alert.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
Playing WAVE 'alert.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
Playing WAVE 'alert.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
But after 3 times it stops, and I would like to print the tail -f result and not the aplay result. How could I achieve that?
I need to tail -f a log file that is rotated.
This is the exact same issue as the one here, but on OS X:
Why does less tail mode stop working?
So how can I constantly track a file whose inode might change under OS X?
I am running a script with nohup and this generates a lot of logs.
In order to view the log I use tail -f nohup.out
The problem is that the info supplied by this command is not always the latest//sometimes I need to use the command again order to view the latest info added to the nohup.out file.
How to print a sequence of line say line number 10 to 20 of a 50 line file ?
View 6 Replies View RelatedFollowing script name is 123.sh and I need to put this in the background if I do 123.sh -bg this will not bring me back to the prompt but echoes what ever I put (using echo hello >> /tmp/123) in to the /temp/123 file. the only way that I have found doing this is to do "nohup 123.sh &" to put this in to the background. Is this okay or is there any better way of doing this?
#!/bin/bash
# file name is 123.sh
tail -f /temp/123 | while read line
[code]...
I have installed Ubuntu 11.04 over the weekend and wanted to tail the logs whilst doing so stuff. When I browsed to the folder after getting an error trying to tail, I noticed that the messages file does not exist.
Usually use tail -f /var/log/messages
I was using Opensuse on Virtualbox earlier today. I issued the tail -f /var/log/messages command on Opensuse 11.3 to see the messages. Then I logged in from my Mac into Opensuse 11.3. I noticed that Opensuse was displaying realtime messages of the things happening. For eg, I entered a wrong su password and it displayed that too. But no such things were happening on my Fedora 13 installation. So is there any way if I could get some realtime messages on Fedora 13 too like the one on Opensuse..?
View 4 Replies View Relatedtail -f <filename> is not working as planned on my Ubuntu 9.10, it doesn't show the appended data.tail -F works, but it does not append the new line, it reopens the file with the message: "tail: <filename> has been replaced; following end of new file"
View 4 Replies View RelatedIs there a way to tail a log file and send each line as a syslog event to a remote server?
View 1 Replies View RelatedI have had update problems for a very long time in my desktop e-machine. Maybe since 5.3. Usually something about Gwenview and other things. And, while --skip-broken got other packages updated, sorry, an incomplete update just isn't acceptable. Because of this I stopped using Centos for a long time. Yesterday, I got ambition and gave it another try. I had a lot of yum upgrade failures when upgrading 5.4 to 5.5, using --skip-broken.
I decided to fix things or delete Centos completely. But, I like the idea of free R****t. I realize this may have been posted, but I had no luck finding it via Google, So I started Googling. I soon found the --disablerepo option, and playing with repos, got most of the failures to upgrade. But, still hung up on a lot of stuff, like 11 packages or more.
Next, I learned about yum-prioroties and setting repo prorities. Yum-priorities was already installed, but I did go in and set the priorities. Since Google has a lot of information on this, I will not repeat here. You go into the repo config files and add a priority number to each repo listing. Here is a script to display repo priorities that I found online, sorry, I lost the author:
[Code]...
I'm running ubuntu 9.10 with the latest networkmanager (from ppa)I thought this could be wrong credentials setting, so i've tried a huge amount of setups (user: phonenumber, password: phonenumber, avp:telenor, seems to be the general consensus for how it should be)Is there something I'm missing or is there any way I could tail the output as NetworkManager tries to connect (hopefully seeing something like "wrong password" etc.)
View 6 Replies View RelatedI'm trying to write a script that will either tail or watch /var/log/messages for the words
PHP Code:
signal Gone into alarm state
From this line below.
I would then like the script execute:
And have run at start up.
I'm stuck with grep-ping only one word
PHP Code:
By invoking x11vnc with the -gui tray option the TCL/TK GUI attempts to embed itself onto the system tray, but I encounter the error message "tail: cannot watch /tmp/x11vnc.tray.*", after the first settings dialog approved [clicked OK]. I believe that a package is still missing to be installed and this is not really a software bug. I use the XFCE version shipped along F15, and the GUI can be started but not as a docked-applet.
View 3 Replies View Relatedi have generated .exe file from C file (ie filename.c ) after compiling in linux machine with -O option. I wish to know about how to run that .exe file when linux system starts up ?
View 3 Replies View RelatedI want to convert fdf file to xsf file or xyz file on ubuntu 9.10_32 bit .
View 5 Replies View RelatedI'm attempting to apply the quota patch to postfix 2.5.1. I have done the following..
Code:
cd /usr/src/
apt-get source postfix
wget http://vda.sourceforge.net/VDA/postf...da-ng.patch.gz{code]....
dpkg-buildpackage: failure: tail of debian/changelog gave error exit status 1
I have searched hi and low and still can't work out how to resolve this.
So everytime I resume Ubuntu from hibernation, it remains black for a time then 2 messages on the screen appear for about 10 seconds before I can log-in:
Code: [ 0.556247] [drm:init_ring_common] *ERROR* render ring head not reset to zero ctl 00000000 head 02001000 tail 00000000 start 02001000 [ 0.556320] [drm:init_ring_common] *ERROR* render ring head forced to zero ctl 00000000 head 00000000 tail 00000000 start 02001000
I work for a company that makes portable devices running Linux and I was recently asked to make the underlying file system read-only for "security" purposes. Since the distribution is based on LinuxFromScratch, I know that very little writing happens at run time. So, even if the device runs on a usb flash device, I doubt that putting the root file system RO will be that beneficial. I am actually more concerned about a process actually breaking because it cannot open a file in RW mode than a process going rogue and filling the root file system with log files, etc. I'd really like to ear what kind of advantages disadvantages there really is with read-only file-systems.
View 6 Replies View RelatedCan't log into my XFCE desktop like I normaly do. all the sudden I get notified that my xsession lasted less then 10 secondsLooking at the error I can see this:
Unable to access file /home/username/.iceauthority: No such file or directory
Using failsafe I can start a terminal. From terminal I tried to start X
Code: sudo startx Result: Running on desplay:0
So I tried to run this;
Code: sudo startxfce4 And I get up a graphical desktop.
So this is not a critical situation as I easily can use this method to log on, but as there has been something causing this I would like to be able to resolve this nonetheless. Btw it is not the old chmod trick in play here, cause my .iceauthority file is gone alltogheter.
I'm currently stuck at 6.13 GMP-5.0.0 of the LFS installation. After running make, I receive the following:
error while loading shared libraries: libbfd-2.20.so: cannot open shared object file: No such file or directory
make[2]: *** [libmpn.la] Error 127
make[2]: Leaving directory `/sources/gmp-5.0.0/mpn'
[code]....
I have just been bothered by a fairly small issue for some time now. I am trying to search (using find -name) for some .jpg files recursively. This is a Redhat environment with bash.
I get this job done though I need to copy ALL of them and put them in a separate folder BUT I also need to keep the order intact after copying.
For e.g - If I get a JPG file under /home/usr/new/1/ then the destination also needs to be /test/old/new/1/.
At the moment, I am simply putting all files under /test/old/ and I can't somehow get the later /new/1/ folder path created under /test/old/
I understand this could well be done using while OR if else loop, though if someone can just guide me with a hint, I would be really grateful.
I will complete the rest of the steps and was asking here since I am still not comfortable with the shell/bash scripts yet and planning to be really good at it over the next couple of months.
I need to get the modified date on a file in linux to use in a script.I tried using 'ls -l' on the file, but this caused problems when the date turned from a single digit into a double. The reason for the problem was because I was parsing the result string on spaces.How can I get the date of the last time a file was modified so I can use it in a script? For example, if a file was modified on 1/11/2010, I need the 11.
View 2 Replies View RelatedHow can I check and set who can view or open a given folder or file?
View 1 Replies View RelatedI am using xubuntu and there are a few types of files on website that instead of downloading and saving and then opening with emacs, I would rather when the radio button choice comes up say open with emacs. I am using xubuntu with xfce, and there is no line for a command to be entered as some ubuntu editions have. In the choice of changing the opening program from mousepad to something else, it says search and allows to navigate to find a program, but I cant find emacs anywhere not in etc/ or elsewhere. So where is its executable to direct the program chooser to?
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