netstat -nltp where -n Displays active TCP connections, however, addresses and port numbers are expressed numerically and no attempt is made to determine names. -l Show only listening sockets. (These are omitted by default.) -t Display only TCP connections. -p Shows connections for the protocol…
If you want the TAB completion to be case-insensitive, like it is in MS-DOS for instance, you can in your ~/.inputrc set: set completion-ignore-case On Now, BASH will auto-correct the case of files and directories for you.
I’m sure you have one time or another wondered where all the magic is happening on your servers. Anything from how and why the logs are rotated, why your desktop icon says “20 packages can now be updated”, how is the Apache cache cleaned when…
…and the world strarted to turn to 64 bits OSs. The popular argument is that a 64bit operating system could address more memory than the ~3.5GB 32bit OSs stop at. However, with Linux, this is no argument as the bigmem patch (now called PAE) can…
Sniffing packages is extremely useful when debugging any network related traffic. Some of you are using a graphical client such as Wireshark, which is very nice when you’re debugging on your own computer. However this is inconvenient (and outright a pain to use) if you’re…
In Ubuntu: (as root) % mkdir /usr/lib/jvm % cd /usr/lib/jvm % cp /data/download/jdk-6u33-linux-x64.bin . % chmod a+x jdk-6u33-linux-x64.bin % ./jdk-6u33-linux-x64.bin % mv jdk1.6.0_33/ sun-java6-jdk % update-alternatives –install "/usr/bin/java" "java" "/usr/lib/jvm/sun-java6-jdk/bin/java" 1 % update-alternatives –install "/usr/bin/javac" "javac" "/usr/lib/jvm/sun-java6-jdk/bin/javac" 1 % update-alternatives –install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/sun-java6-jdk/bin/javaws" 1…
find . -name "articleTypes.xml" | xargs grep -n -i -e 'tidy' or find . -name "apple.txt" -exec grep -H -n -i -e "tidy" \{} \; Search from the root all the files called ‘articleTypes.xml’ which contain the word ‘tiny’ and show in what line it…