I need to perform ls, cp & tar in a directory that contains 80k text files, but i understand that there are limitation for files 70000 files and above.
I would like to know how can i perform such command e.g "ls -l | wc -l" with so many files.
I've been trying to use a find command with -exec to find the differences between identically-named files in different paths. My initial attempt was to do something like this:
Code: find trunk/ -type f -not -path '*.svn*' -exec diff '{}' `echo '{}' | sed 's/^trunk///'` ;
Unfortunately this does not work at all as expected (the diff ends up executing on the same file)! I have narrowed it down to the subshell (inside the ``) but beyond that I have no idea. For some reason the sed, though written correctly, does not perform the substitution. I've changed the diff to echo and played with the sed command and the only way I can get it to perform _any_ substitution is to use .* as the regex. Even s/.*trunk.*/SUB/ doesn't work. Any insight into the inner workings of -exec/subshells/pipes or some crap I'm missing? Don't worry about rewriting the command to make it work; I simply swapped the paths and got rid of the subshell nonsense and everything works fine.
How do you perform a long directory listing of all files in the /bin directory that have exactly three characters in their name?
View 1 Replies View RelatedI have set up the sodoers file to allow everyone in "group1" full sudo permissions without needing to enter their password.
Is there any way to allow users to perform everything except the shutdown command?
Is there an equivalent command that will perform the same task as ALT+F4 keystroke? I want to create a simple script that lirc can use so I can set up a button on my remote to close program windows that pop up (like when plugging in usb thumb drives, inserting a dvd, and other windows), and avoid having to remote desktop or go into CLI to kill the window.
View 9 Replies View Relatedis there an easy way for me to get the hardware specs of a linux machine, such as number and type of processors, RAM, BIOS version, # of power supplies, etc from a command line?
I'm dealing with Dell servers, but even if i can just get number and type of processors and RAM config, that'd be great. I know how to easily do it in Windows, no clue on Linux.
Currently I backing up the MBR, the C and the other partitions to an external USB HDD and from there I restore them if needed. I use the SystemRescueCd and commands like dd if=/dev/sd* of=/mnt/PC_name/backupmbr.1 count=1 bs=512 and ntfsclone --save-image --output /mnt/PC_name/PC_name_c.img /dev/sd*1 etc. I want to clone the HDD the way, however, that I omit the external USB drive. I want to connect the new HDD to the PC and do the cloning directly from one disc to the other.
My questions are:
- Can you provide me with the exact command?
- Is that a difference if the disc is SATA or IDE?
- Can I copy the disc even if the old disc don't wan to boot?
The OS is Windows on the disc I want to clone.
I need to perform patching on some RHEL boxes.
This the first time i am gonna do this. Kindly advise, how and what are the steps i should take to perform the OS patching.
Can one perform an installation of CentOS 5 (5.4) so that the system is up-to-date at the time of the first boot (i.e. Anaconda will pull and install the 'latest' versions of the packages directly, and the user needn't run `yum update` | `yum upgrade` after the system has been installed)?
If this is doable at all, is it possible to accomplish without making use of a personally custom-crafted-and-hosted repository (i.e. can one of the official CentOS mirrors be used)?
Also, I'm not talking about creating an install DVD containing the latest versions of the packages, but rather, if the netinstall media can be used to perform this particular type of installation.
I am using debian 5.04 + LXDE. In the past, I sometime encounter problems such as the distro broken after performed a full apt dist-upgrade or upgrade. Now, I am more conservative, I am using apt safe-upgrade.
I want to know are there anyway to do a better safe upgrade for debian without breaking the distro?
I want to perform an e2fsck with the y switch (so I dont have to answer yes to every question) on two volumes on a server the next time I restart it. I don't want to do a shutdown -rF because 1) I dont want to check the other volumes and 2) it seems when I do that, the e2fsck doesn't keep restarting itself over and over to fix all the problems. Seems like it runs once, then if it fails it drops you to the repair console in single user mode. I'd rather just have it start the check that will keep repeating over and over right away, because I know it'll take more than one pass.
View 5 Replies View RelatedThere must be a way to perform privileged tasks in the Gnome desktop (or actually Nautilus, I guess)...similar to using SUDO in a terminal window.
For example I want to change the rights to a file, but Nautilus tells me I can't because I'm not the owner.
Am have a little problem with my ubuntu 10.04 which restarts as i do some task for example..as i am copying...playing music..and any operation task.
View 1 Replies View RelatedI'm sure this is possible but I can't figure it out. I have a file formatted like this:
Code:
>SEQUENCE1
FGFD665:?@663:BBBBAA?A@<<4!1004699<7444399>???888455555?AAA?AABBB@@@<<<34
>SEQUENCE2
>&<4!1004699<7444399>???888455555?AAA?AABBB@@@<<<34BBB@@
>SEQUENCE3
???888455555?AAA?AABBB@@@<<<341004699<7444399>???888BBB@@
The odd-numbered lines containing >SEQUENCE# are the headers and the even-numbered lines containing a variety of characters represent DNA sequence read quality scores.
I want to replace all of the greater-than (">") symbols in the quality scores (even-numbered lines) with a "0" but I want to leave the greater-than symbols on the odd-numbered lines alone. I would just use sed -i '/^>/! s/>/0/g' $FileName but sometimes the quality scores begin with a ">" as well.
I'm sure there is a simple modification of a normal sed command with an "n" inserted somewhere but I can't figure it out.
Anyone know how to remotely boot a server so that a network boot (F12) automatically starts? For example, in Solaris, I can type "reboot -- net -s" (hope i remembered the syntax - been a while! )to reboot my server and begin a network installation without having to be at the console. I am looking for the same in SLES.
View 1 Replies View RelatedI am arthritic and I have considerable difficulty with a double click. I also have difficulty when using a mouse of moving the mouse as I select something (click the button) from whatever window I am working with and thereby selecting the wrong thing. To compensate for this difficulty, I use a Logitech trackball and program the center button to perform a double click with one stroke. I am currently struggling with Linux Mint 9 in my search for a Windows alternative. Is there any way to program my center button (scroll wheel) to perform a double click in this or any other Linux version? Alternatively, is there any way to program a keyboard key to perform a double mouse click with a single stroke? I do not want any multiple key combinations for this operation, I want something that works with a single click of one button.
View 4 Replies View RelatedWill this:
* * 1 1-12 * #dump -0uf /dev/st0/
* * * * 0 #dump -2uf /dev/st0/
* * 2-31 * 1-6 #dump -5uf /dev/st0/
answer this question?How to create a cron file that will regularly perform the following backups:a. Performs a level 0 backup once per monthb.Performs a level 2 dump one day per weekc.Performs a level 5 dump every day that neither a level 0 nor a level 2 dump is performed. If not, I'm I close? This is homework, so I don't want a direct answer
I have a folder named "logs" which contains log files. I would like to have a bash script or a cron job or something like this which will check the folder continuousy and perform some tasks (for example echo "New file is created") every time a new file with pattern like "Screen.log.***" is created in the folder "logs"
Is it possible in Linux?
My root partition is formatted as ext3 and I would like to perform a bad blocks scan on it. Normally e2fsck -c -c does this, but you can not run it on a mounted partition. I know it is possible to force a fsck to run at boot by creating the file /forcefsck but is it possible to specify that it should also check for bad blocks? If not, what is the recommended way to check for bad blocks on the root partition? I would like to avoid having to create a rescue disk and boot off of it.
View 2 Replies View RelatedI use the Actions feature of KDE's Klipper utility to run certain commands when I copy something into the clipboard that matches a particular regular expression. Unfortunately, I have to turn on Enable Clipboard Actions and select the command from a menu every time I copy something that I want to run the command on. I'd like to have that command run automatically instead.
You'd think this was possible, as there is an automatic checkbox in the action settings dialog box:
Unfortunately, that appears to do nothing. The documentation included with Klipper does not indicate what that checkbox is supposed to do.
Is it possible to configure Klipper to run a command automatically if the contents of the clipboard matches a regular expression? If not, is there another way to accomplish this?
I need to use Live Media to make changes to a hard disk drive. I tried to sudo to no effect.
Seems like it would be troublesome to authorize root access on Live Media or have sudo allow commands such as pvcreate,lvcreate,vgcreate, especially if the hard disk is not encrypted.
What is the ssh commands to rename a group of files?
I need to rename:
avatar_01.jpg
avatar_02.jpg
[code]....
What's the command for renaming files? I thought it was "mv"--I typed "info" and read
Quote:
* mv: (coreutils)mv invocation. Rename files. So, desiring to give a .JPG extension to a jpeg file that had no extension (because I dug it out of my Firefox cache), I typed
Quote:
mv '/home/josh/Desktop/Natalie pictures/DEC8FFA5d01' *.jpg
That didn't rename the file; it made the file disappear from its folder. What did I do wrong?
i have file1 and file2.
[Code]...
Here i want to compare these two files with diff command and need to take the common things in a separate file. File contents are 7 strings in length and everything will start with the character e. File 3 contents should be
[Code]...
Using tar command. All I need the usage, and basic explanation. Let's assume I have a directory with files that I need to tar, how do I go about it.
View 14 Replies View RelatedHow do you create a cron file that will regularly perform a level 0 backup once per month?
View 2 Replies View RelatedI have to transport a lot of files from one pc to another (both Linux). I would like to use scp for that, but scp only allows for transferring one file at a time. How can I do this?
I have No possibility to use rsync or any other protocol No possibility to use passphrase free certificates (but have a certificate with a passphrase) A list of files to transfer and a list with the destination path of the files on the other server The files are spread out over a lot of directories, and not all the files in the directories I want to copy If possible I would like to gzip and ungzip transparently to save bandwidth!
My goal is to find all pdf files on a remote machine, so I resort to the useful command find. So I type find .pdf or find .pdf" and I get nothing. I do the same on my machine and I get nothing. I do a regular search from the menu on my machine and I find quite a few pdf files. Would somebody please tell me what am I doing wrong?
View 5 Replies View RelatedFor example, see this page Advanced Linux Programming.
I want to download all the pdf files linked from this page. Is there a simple commandline way of doing it?
Something on the lines of
download [URL]
I'm looking for a solution for the following simple problem. I have two files, fileA and fileB. Each file contains only one word per line, and they contain exactly the same number of lines. I would like to create a new file called fileAB, where the i-th line contains the i-th line of fileA, a Tab separator character, and then the i-th line of fileB. I know how to do it in Python or other scripting languages, but it would be nice to have a bash one-liner for that. Is it possible to do this in bash or any other Unix shell, using the tools that are usually available on the command line (e.g., sed, awk and such)?
View 1 Replies View Related
