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How to generate a random, unique string using numbers and letters

While creating API for Android App, i came across with very simple but difficult (for me) problem.

How would it be possible to generate a random, unique string using numbers and letters for verfiy user, Something like api_key which is unique to user but at the same time it shuold be safe and it will always associate with user.
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Subfolders v/s Subdomains: Which one to choose for SEO?

Subfolders and Subdomains have their own pros and cons if viewed from business viewpoint. However, these day’s website owners more interested in  focusing their efforts on SEO.

Which one to choose Subfolder or Sub Domain for my blog promotion?
If you are thinking of launching a new blog, then using a sub-folder will bring better rankings on search engines.

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Category: SEO, Technology | Tags: , ,

How to Compress and Unpack an directory in Linux?

For compress file or directory, GNU tar command is best for this work. It can be use on remote Linux or UNIX server. It does two things for you:
– Create the archive
– Compress the archive

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Category: Linux | Tags: , , , ,

How to get List of all mounted filesystems on the Linux system?

The mount command mounts a storage device or file-system, making it accessible and attaching it to an existing directory structure.
The umount command “unmounts” a mounted filesystem, informing the system to complete any pending read or write operations, and safely detaching it.

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Category: Linux | Tags: , ,

How to get List processes – Linux Commands?

ps is the command which gives us reports a snapshot of the status of currently running processes. The process status command (ps) displays information about active processes.
Syntax: ps [options]

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Category: Linux | Tags: ,