Examples: 1. To print the current user ID $ id 2. To ge the all the identification information of the a user […]

Examples: 1. To see the hardware clock $ hwclock 2. To read the Hardware Clock and print the time on Standard Output […]

Examples: 1. To print the hostname of the system $ hostname 2. To display the alias host name of the system $ […]

Examples: 1. To set the initial value for the server root $ httpd -d /var/tmp/ 2. To set the config file $ […]

Examples : 1. To output first 10 lines from the file $ head file.txt 2. To output first specified number of bytes […]

       /var/run/utmp       Reads current runlevel from       /var/log/wtmp       A new runlevel record for […]

Examples: 1. To compress any file $ gzip file 2. To decompress a file $ gzip -d file.gz$ gzip –decompress file.gz$ gzip […]

Examples: 1. To unzip any compressed file $ gunzip file.gz 2. To get the License information $ gunzip -L$ gunzip –license 3. […]

       /etc/group              Group account information.       /etc/gshadow         Secure group […]