On 10/19/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > Hi > > Am having some CL problems > > First sometimes when i used a command (say like dmesg -c) am not able > to view the entire output - when i scroll right to the top - where the > command and the output i am not able to get to the top. > > Why ? is there some setting i need to change to make the number of lines > visible unlimited !! > > Specific Problems with dmesg > > *1 Am unable to pipe dmesg to a txt file output > tried using this command > dmesg -c > filename
Try dmesg -c >> /tmp/filename Can anyone explain why this works and not ' > ' ? tried it with sudo as well but got a file with 0 bytes > tried to add a dot txt extension same result file size 0 bytes > > > *2 Does dmesg have to be under su mode only > this is the message i get when i try is as normal used > > [EMAIL PROTECTED]:~$ dmesg -c > > klogctl: Operation not permitted > > This does not occur everytime nd i cannot figure a pattern to it. > > *3 After using dmesg -c i am unable on repeating the command i get no > output. which means i either have to copy the dmesg to a file and read > it / or worse reboot to see the whole thing again (after having an > incomplete dmesg in the first place) > > Further if i have a specific device i am searching checking for if i > unplug and replug it the dmesg gives me only the last output (for the > unplugged and replugged device) > > I have tried removing the -c to clear buffer ring but i am still stuck > with the latest unplugged and retarted lines and not the whole dmesg > > So whats going on > > I tried the -n (levels) and -s (bufsize) but i either get an error or > nothing happens. > > see sample below: > > [EMAIL PROTECTED]:~$ dmesg -s 32784 > > [ 1143.048000] usb 1-1: USB disconnect, address 3 > > [ 1143.048000] pl2303 ttyUSB0: pl2303 converter now disconnected from > ttyUSB0 > > [ 1143.052000] pl2303 1-1:1.0: device disconnected > > [ 1145.276000] usb 1-2: new full speed USB device using uhci_hcd and > address 4 > > [ 1145.428000] usb 1-2: configuration #1 chosen from 1 choice > > [ 1145.432000] pl2303 1-2:1.0: pl2303 converter detected > > [ 1145.432000] usb 1-2: pl2303 converter now attached to ttyUSB0 > > [EMAIL PROTECTED]:~$ dmesg > > [ 1143.048000] usb 1-1: USB disconnect, address 3 > > [ 1143.048000] pl2303 ttyUSB0: pl2303 converter now disconnected from > ttyUSB0 > > [ 1143.052000] pl2303 1-1:1.0: device disconnected > > [ 1145.276000] usb 1-2: new full speed USB device using uhci_hcd and > address 4 > > [ 1145.428000] usb 1-2: configuration #1 chosen from 1 choice > > [ 1145.432000] pl2303 1-2:1.0: pl2303 converter detected > > [ 1145.432000] usb 1-2: pl2303 converter now attached to ttyUSB0 > > [EMAIL PROTECTED]:~$ > > *** > hoping to know whats happening and how to rectify it. > > thanks > ram > > > > > > > > -- > ubuntu-in mailing list > [email protected] > https://lists.ubuntu.com/mailman/listinfo/ubuntu-in > -- With Regards Abhishek Amberkar There is no operating system but GNU, and Linux is one of its kernels.
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