I'm using a docker image as a base for my own development that adds the jessie backports repository in its Dockerfile and uses that to install a dependency. This image uses the following command to add the repository: echo "deb http://ftp.debian.org/debian jessie-backports main" >> /etc/apt/sources.list The problem is that fetching packages from the backports repository now fails with the followin
I use screen for my command-line tasks while managing the servers where I work. I usually run small commands (mostly file-system tasks) but sometimes I run more extensive tasks (like DBA). The output of those tasks is important to me. Since I use Ubuntu and OS X (both Terminal Windows) for my tasks, yet I need to use screen, the scrolling is not available, so any long output (think a 500-row table
I have a PC with Intel(R) Pentium(R) CPU G640 @ 2.80 GHz and 8 GB of RAM. I am running Scientific Linux 6.5 on it with EXT3 filesystem. On this setup, what is the fastest way I can do a sort -u on a 200 gigabyte file? Should I split the file into smaller files (smaller than 8 GB), sort -u them, put them together, then split them again in a different size, sort -u again, etc.? Or are there any sort
Reading the changelog of the debian openjdk-8 source package we see that there is a version called openjdk-8 (8u45-b14-4) and the next one is openjdk-8 (8u60~b22-1). What is the meaning of the tilde in this last version?
So I have 4 GB RAM + 4GB swap. I want to create a user with limited ram and swap: 3 GB RAM and 1 GB swap. Is such thing possible? Is it possible to start applications with limited RAM and swap avaliable to them without creating a separate user (and not installing any special apps - having just a default Debian/CentOS server configuration, and not using sudo)? Update: So I opened terminall and type
I thought the following would group the output of my_command in an array of lines: IFS='\n' array_of_lines=$(my_command); so that $array_of_lines[1] would refer to the first line in the output of my_command, $array_of_lines[2] to the second, and so forth. However, the command above doesn't seem to work well. It seems to also split the output of my_command around the character n, as I have checked
I have an Ubuntu 12.04 virtual box vm that I instantiate using Vagrant. git clone https://github.com/spuder/puppet-gitlab vagrant up As soon as the vagrant box runs apt-get update, I get the following error. ... W: Failed to fetch gzip:/var/lib/apt/lists/partial/apt.puppetlabs.com_dists_precise_main_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch gzip:/var/lib/apt/lists/partial/apt.pupp
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