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Last 16 articles

01/01/2010 Categories: News Tags:
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Linux: 20 Iptables Examples For New SysAdmins

According to the official project site: netfilter is a set of hooks inside the Linux kernel that allows kernel modules ...
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30 Handy Bash Shell Aliases For Linux / Unix / Mac OS X

An alias is nothing but the shortcut to commands. The alias command allows the user to launch any command or ...
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Top 32 Nmap Command Examples For Sys/Network Admins

The purpose of this post is to introduce a user to the nmap command line tool to scan a host ...
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How to check the file size in Linux/Unix bash shell scripting

  How to check file size in unix using wc command The wc command shows the number of lines, words, ...
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How to get domain name from URL in bash shell script

How can I extract or fetch a domain name from a URL string (e.g. using bash shell scripting under ...
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How to count total number of word occurrences using grep on Linux or Unix

I want to find out how many times a word (say foo or an IP address) occurs in a text ...
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How to find and delete directory recursively on Linux or Unix-like system

I type ‘find . -type d -iname foo -delete‘ command to find the foo directories and delete them. However, I ...
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How to display countdown timer in bash shell script running on Linux/Unix

I want to display a countdown before purging cache from CDN network. Is there an existing command to show a ...
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