Category Archives: Linux

You got to love Linux. Not only that it is free, but it is also very strong, stable, and widely used.

Delete All Symlink in The Current Directory

Posted on February 27, 2012 by ronaldpringadi

find . -maxdepth 1 -type l -exec rm -f {} \;

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Benchmark How Long a Program Runs In Linux Using Bash

Posted on February 14, 2012 by ronaldpringadi

The following bash code might come handy for those of you who want to benchmark how long does a program runs. In the following example the assumption is that you want to pass along two parameters for your program to … Continue reading →

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Auto Login Using SSH Public and Private Keys

Posted on February 13, 2012 by ronaldpringadi

Assume that your main server (the one you use the most) is ServerA. And from ServerA, you want to automatically login to ServerB. For illustration purpose, ServerB can be a repo server and you don’t want to keep being asked … Continue reading →

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Linux Soft Symlink Folder or Directory

Posted on February 13, 2012 by ronaldpringadi

$ ln -s /home/rpringad/somefolder /home/rpringad/newfolder #or if your current directory is already /home/rpringad: $ ln -s /home/rpringad/somefolder /home/rpringad/newfolder $ ln -s existingSourceFolder newLinkedFolder

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How To Know Which Linux Distribution You Are Using?

Posted on January 24, 2012 by ronaldpringadi

There are three commands that you can use, pick one of them: 12345cat /etc/issue cat /proc/version dmesg | head -1

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How to Set up an FTP Server in Ubuntu Linux

Posted on January 18, 2012 by ronaldpringadi

Login to your Linux shell menu as root 12[root@locahost]# apt-get install vsftpd [root@locahost]# vim /etc/vsftpd.conf At VIM, 1st comment out anonymous_enable by adding a # sign at the beginning of the line # anonymous_enable=YES 2nd remove comment at local enable … Continue reading →

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Adding color to your tail

Posted on December 22, 2011 by ronaldpringadi

Tail is a very useful tool for monitoring error stream. Sometime the output from tail can have too much information and its black and white monotone output can be hard to follow with the eyes. The basic: Linux terminal has … Continue reading →

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How to see open ports in Linux

Posted on October 6, 2011 by ronaldpringadi

How to see open ports in Linux 1nmap -sS -O 127.0.0.1

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Find Files in Linux by Name

Posted on September 13, 2011 by ronaldpringadi

To find files in linux with a certain name portion or pattern we can issue a locate locate command. If locate is unable to find a matching file, then you might need to update your file index database. 12# locate … Continue reading →

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Finding a String Inside Multiple Files in Linux

Posted on August 25, 2011 by ronaldpringadi

This is how you can find a text/string Proudly inside folder /var/www. The -H parameter is to show the filename and -R is to make grep look recursively. 1grep -H -R "Proudly" /var/www

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