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Currently Browsing Tag: Bash

Install Memcached on Fedora 25/24, CentOS/RHEL 7.3/6.9/5.11

Memcached is a high-performance, distributed memory object caching system, generic in nature, but originally intended for use in speeding up dynamic web applications by alleviating database load. Memcached is a very useful also in other...

PHP CLI Colors – PHP Class Command Line Colors (bash)

PHP Command Line Interface (CLI) has not built-in coloring for script output, like example Perl language has (perldoc.perl.org/Term/ANSIColor.html). So I decided to make own class for adding colors on PHP CLI output. This class works only...

Quit Bash Shell Without Saving Bash History (5 Methods)

Sometimes it is very useful to delete / remove Bash history partially or completely when log out. Here is my favourite methods howto log out / quit / exit Bash shell without saving Bash history. Remove Only Current Session Bash History...

Linux: Create Text File on Linux Shell / Command Line

This is a very typical case, the need to create a temp file on the command line quickly. Opening editor, writing content, save file and quit editor is not the fastest possible way. A faster way is to use the cat command with the name of...

Google search from Linux and UNIX command line

Today I started thinking that how cool is do some Google searches straight from command line. First I try to find some ready tricks from the Internet, but I couldn’t find quickly anything good. So I decide do a simple Bash function...

Delete files securely on Linux – Journaled file systems

Few days ago I write about shred, which work fine for old systems, like EXT2, but not so nice with journaled file systems. Modern file systems need something more robust, like dd and srm (a secure replacement for rm). Unlike the standard...

Add Hostname, Date, Time, Uptime, Load Average to Linux Terminal Title

This tip is really useful if you need/want to monitor multiple servers at the same time. This Tip works, as the tip, by which you can add the date and time the title of the Linux terminal, but it adds more usefull info to terminal title....

YUM History (list, info, summary, repeat, redo, undo, new)

Yum (Yellowdog Update Modified) is RPM Packet Management system for Fedora, CentOS, Red Hat, OpenSuse etc. Yum history (list, info, summary, repeat, redo, undo, new) commands is added on 3.2.25 version. So this works every Linux Distros,...

PHP Script to Generate PostgreSQL Table Partitioning (Part 2)

As Part 1 (Howto create PostgreSQL table partitioning) shows, making of PostgreSQL partitioning needs a lot of SQL commands. So this Part 2 explains how SQL commands for PostgreSQL partitioning can be made with a simple PHP script. This...

Delete files permanently with shred command in Linux – Remove absolutely

Sometimes need to delete files whose contents should disappear absolutely, completely and safely. Linux command rm just remove file and it is still possible to dig out from the disk. Fortunately for Linux can be found in shred program...