I'm working on testing a modification to a bash script for work. I'm trying to scp a file to the same source directory. For testing purposes, I've altered the permissions on the target directory so that the scp'ing user doesn't have permissions to write to it. The first try I get a return code of 1. The second try I get a return code of 0, even though the permissions haven't changed and the file actually fails to transfer. [more inside]
At my Pretty Big company, I run a large Unix-based system that does Something Important, and we need to find someone to help me, and ultimately to take over running of the system. My two challenges right now are A) how to describe what I need to the HR folks, and B) how to evaluate the candidates that they come up with. Can you help me describe what I need, and come up with a way to test the people that show up? [more inside]
Anyone have a recommendation for an online linux administration course ? [more inside]
I accidentally added a line of source for Utopic to sources.list. And later my system can't get into GUI. While trying to fix the problem I accidentally typed in command sudo apt-get update and sudo apt-get upgrade. So tragedy happened: my system was upgraded to 14.10 utopic daily built! which I don't want! what's worse, becuase it was upgrading from 12.10 to 14.10, a lot of dependency can't resolve, and many services stopped working. The worst thing is, I still can't get into GUI. What should I do for this circurmstance? I'm a newbie in Linux/Unix. Thank you very much!!!
I am looking for a command line tool that will let me edit data in a shell pipeline by hand before sending it out again on STDOUT. [more inside]
How can you kill a RHEL process that does not show up in either top or ps -ef? [more inside]
Looking for a community/forum where I can learn more about networking, code, security, and OS-independent CS topics
I'm looking for a forum where I can ask questions about networking, security, coding, operating systems, web design, etc. There are many of these out there, but I'd like to find a single community which covers all these topics more or less equally (so it isn't a Linux forum with a small section on BSD, or a coding forum with a small section on networking). I'd like it to be the sort of forum where users stay around for several years as they learn and contribute at different levels, with high literacy and education-to-spam levels. Could I have your recommendations please?
Need help scheduling a unix task under Mac OS. Probably an easy question for those who understand such things. [more inside]
What hourly rate for a 10+ year UNIX (Linux) admin in Bay Area? This is for maybe 2-3 visits a month, each 3-4 hours in duration. [more inside]
How do you go about when you look for a part-time entry-level software developer job? [more inside]
Recommendations for a tiny Unix distro for serving servlets and nothing else. [more inside]
Open source, command line, low "impact", png-producing, full-featured, good-looking graphing on Linux and other Unices? [more inside]
I'm curious as to what are the current "best practices" when it comes to centralized administration of a network of Unix (primarily Linux, but not necessarily so) machines? Essentially, what is the equivalent of Active Directory for a network with one or more Unix hosts? The immediate answer I come up with would be something like OpenLDAP plus PAM but what I'm looking for is the suite of tools (GUI and CLI apps) for managing the directory, deploying software, centralizing sign-on and security, managing printers, etc. In a perfect world, I would like to centralize administration of Windows, Unix, and OS X machines via a single directory service, though I imagine such a solution would be expensive and/or cumbersome if it even existed. Or is this something Samba 4 will do?
Could anyone recommend a color laser printer for ca. 500 GBP for a small office? Compatibility with Linux and Solaris---essential. BONUS question: should I also buy a monochrome laser for B&W printouts or is an unnecessary overkill when one has a color laser?
I need to pick a seminar/conference/class/training/whatever for work to attend within the next 6 months or so, I have until 10PM to choose, and I have no idea where or what the cool stuff is. It should be at least tangentially related to my job as a Unix Systems Engineer/Python Guy, and preferably within the Northeast (NYC is where I'm located), although feel free to recommend anywhere in the US. [more inside]
I'm using a shell script to handle some excel docs by converting to csv and reformatting it a little bit. I'm having some difficulty going on with the next part of the script. Some help would be great. :) [more inside]
Why is it OK to have no reserved blocks in ext2 on the Acer Aspire One? [more inside]
Can someone give me any pointers, tips, or caveats about installing BSD on sun hardware for use as a firewall/router? [more inside]
Found an old computer in the basement. What steps should I go through to get it up and running? [more inside]
vi / vim editor: Can I paste text inside a colon command? [more inside]
Question about changing my terminal prompt (and other matters) in an OS X Bash shell. [more inside]
Obscure linux/unix text processing command: what is 'dt'? [more inside]
Linux/Unix Admin Filter: What is your preferred method for monitoring bandwidth use per virtual host in Apache? [more inside]
Would anyone care to comment on the most practical way, given access to a command line Fedora box, I can obtain a copy of a folder and its contents? [more inside]
UNIX experts: what's the best way to take a pdf file, cut out a few (non-sequential) pages, insert a few more pages from another pdf file, and end up with one new pdf file? [more inside]
What were your greatest victories and punishing woes as a unix/linux system administrator? [more inside]
We're a small research lab, that uses a series of servers. A smart person would have these machines backed up regularly. But we're not that smart ... [more inside]
I need to change sendmail from sending emails from individual machines as firstname.lastname@example.org to email@example.com. [more inside]
How do I get the correct return code from a unix command line application after I've piped it through another command that succeeded? [more inside]
I'm using the 'make' utility on a Linux system. Is there a way in a Makefile to set all the intermediate files as PRECIOUS without having to list them individually?
How do I get bash to automagically execute a line or two of code at login? [more inside]
Best *nix distro for SSH, RDC, router and print server. Or i could use windows if that would satisfy the conditions. [more inside]
I have a server running Centos 5. It's currently refusing outside connections to any port except port 22. ip-tables and SELinux are both disabled. Whiskey Tango Foxtrot? [more inside]
Configured Readline with the prefix 'ur/local' on OSX. Then installed Ruby in /usr/local, but with Readline. Would like to put everything in the proper place without damaging anything, so what do I do now? [more inside]
*nixfilter: Help me get to the "root" of understanding the vastness that is a unix/linux environment. [more inside]
I saw a really cool unix utility the other day blogged about somewhere, that in addition to some little boring http-ey tasks I can't remember, it also served as a tiny little HTTP-server-in-a-pinch like so:
./magicutil file.tarand boom, http://localhost/file.tar is alive. What was it!? Note: please don't try to find something that can /probably/ do this or show me a cool python script that will - this did some other cool stuff too I can't remember!
Help me troubleshoot performance issues with digital media sharing between two computers. [more inside]
For UNIX-like systems (Linux, BSD, Solaris) is there a way to determine power supply type remotely, preferably with a simple command-line tool? [more inside]
Seeking a better understanding of Linux terminals, mostly being used remotely via SSH. History files, paths, ncurses, etc. [more inside]
In a Unix-type system, is there a way to quickly remove a directory that contains lots and lots of files? [more inside]
I'd like a file server. And a print server. And a low-traffic Asterisk server. All running from one box, please. [more inside]
Years of Linux experience, but looking for training on Solaris and AIX without having to relearn the basics [more inside]
i am a complete Linux Noob and i've decided to go a few rounds with a simple LAMP server. Where can i find helpful resources and suggestions? [more inside]
Help me keep my Windows server from DoS'ing my nameserver! [more inside]
Need a tinker-free Linux/MySql install for Ruby On Rails. Also, seeking advice for getting started in RoR. [more inside]
*nix shell "best practices" anyone? [more inside]
Calling *NIX shell wizards. [more inside]
Linuxfilter: I have a third-party app which writes occasional messages to its logfile. The problem is I dont know when these messages are logged. There is no timestamp - just the message. Is there any way I could force a timestamp? Maybe some trickery with 'tail-f' and 'date' and pipes into some new pseudo-logfile? Thanks.