Tag Archives: linux

Find Text and Find/Replace Easier Than You Think in Linux

By drale | Published: October 24, 2009
How to search all files for a text string: grep -lr string ./ > results.txt -l will print only the path and file names of the matches. Search all files of a certain name for a certain string: grep -lr string ./ | grep filename Yes, do specify ./ if you are doing all directories within current. (source and more info) Find [...]
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Open Source storage server

By jonmoore | Published: October 22, 2009
This is not going to be a full review, but more a general take on things. Since moving from VMware Server to ESXi to host my virtual machines, I’ve been very interested in looking into some more of the advanced features of ESX and ESXi yet most of these require iSCSI.  I remember from a few [...]
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OhioLinux September 25-27, 2009

By jonmoore | Published: September 24, 2009
This years OhioLinux Fest starts tomorrow and runs until Sunday. I’ll be there. You should to. More info at the OhioLinux website
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Check speed of connected link in Linux

By jonmoore | Published: July 24, 2009
If you’ve ever wanted to check on the status of your Ethernet links, you’ve probably used the ip commands (or ifconfig) to view some basic information.  However, you might have noticed these commands do not tell you what the current link speed is, or other possibly important details.  That’s where ethtool comes in. [jonmoore@megaton ~]$ sudo [...]
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Extend the timeout on SSH connections

By jonmoore | Published: May 29, 2009
A quick google search will quickly answer this question, but I’ve found myself asking it a few times lately.  Often when I let an SSH session go idle, I’ll end up being disconnected.  By adding ServerAliveInterval 60 to ~/.ssh/config I’ve managed to limit this from happening. There is also a similar server side fix for this.  [...]
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Creating empty files in Linux

By jonmoore | Published: March 27, 2009
I had a need for several files of various sizes to do some network testing with.  I found a very good us for dd here. dd if=/dev/zero of=10mb-file.bin bs=1024k count=n Using the above command (and replacing n for a value) allows the creation of empty files with the size specificed. Need a 10Mb file, n = [...]
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Arrow keys not working in VMware?

By jonmoore | Published: December 24, 2008
Mine didn’t Luckily Google helped me find a solutation rather quickly, and using information from this site I was able to get things working again. Basically, I added xkeymap.nokeycodeMap = true to /etc/vmware/config and things started working right. Another on the forum suggested remapping the keys, but I didn’t try that.
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Super simple, limited and basic look at tar

By jonmoore | Published: November 13, 2008
Create a tar archive tar -c -f archive.tar * Create a compressed archive with gzip tar -c -z -f archive.tar.gz * You can also condense down the commands like so.. tar -czf archive.tar.gz *
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