The UNIX tail command is very useful for viewing the last number of lines of a logfile. As in this example. Showing the last 10 lines in the file /var/log/syslog. |{~}-{Thu Feb 16 21:36:44} -{john@deep-thought } $ tail -n 10 /var/log/syslog Feb 16 21:31:01 deep-thought cron[1480]: (*system*anacron) WRONG FILE OWNER (/etc/cron.d/anacron) Feb 16 21:31:29 deep-thought … Read more
The best way to create a new file with Linux is to use the touch(1) command. The touch command, when used on an existing file will update the file date stamp to the current system date. But if you type touch myfile.txt this will create an empty file named myfile.txt if this file is not … Read more
Time a UNIX command. the time(1) command will tell you how long it took for a command to execute. ubuntu ~ $ sudo time find / -name dpkg.log /var/log/dpkg.log 0.82user 1.82system 0:34.04elapsed 7%CPU (0avgtext+0avgdata 2260maxresident)k 679328inputs+0outputs (2major+4374minor)pagefaults 0swapsubuntu ~ $ sudo time find / -name dpkg.log /var/log/dpkg.log 0.82user 1.82system 0:34.04elapsed 7%CPU (0avgtext+0avgdata 2260maxresident)k 679328inputs+0outputs (2major+4374minor)pagefaults … Read more
There are many useful Linux commands that are fun to use and can do some very cool things. cat mysongpart2.mp3 >> mysongpart1.mp3cat mysongpart2.mp3 >> mysongpart1.mp3 Using /bin/cat to append the second part of a MP3 file onto the first part, making one large file that will play seamlessly from part one to part 2. vmstat … Read more
While running Linux, if you want to list the contents of a folder in a vertical list format, just use the ls command with these switches. ls -hula –color=autols -hula –color=auto then you get the directory listing with human readable file sizes instead of being listed in bytes. To list the partitions on a disk, … Read more