What is chmod ?
chmod ( Change Mode ) is a command line utility in Unix , Linux and other Unix like systems to change the read, write, execute permissions of a file for owner , group and others.
How to use chmod?
Chmod command is used in two ways :
1. Using octal value & position : Sets the permission for owner, group and others with octal values , 4 for read , 2 for write , 1 for execute and any sum of these number to get cumulative permissions.
SHA-1 is widely used in applications like SSL, SSH, TLS, IPsec PGP, S/MIME to protect the sensitive information.
Google has demonstrated that SHA-1 Collision is possible and two files can have the same SHA-1 hash. This means that system can be manipulated by presenting it with manipulated data with same hash as good data.
man command, short for manual, provides help for the commands, utilities or function in Linux and Unix systems. Learn about usage , related packages, sections and other interesting facts about man pages.
Great News, adminschoice.com is opening up to allow guest posts from bloggers and technical professionals.
If you are a tech blogger or a technical professional wishing to share your experience and knowledge with others you can contribute to adminschoice.com and establish yourself as technical expert in your field.