Category ‘Operating Systems’

• TECHPULP | How to get a shell with root access in Ubuntu similar to “su” in RedHat or Fedora Linux
  In RedHat or Fedora systems, you will separate passwords and separate user accounts for root and non-root user. But in Ubuntu, the default user already has root privileges but not allowed to run any command that requires root privileges directly....
• TECHPULP | How to enable auto login for SSH
  This article assumes that the host name of server is “server1.techpulp.com” and that of client machine is “client1.techpulp.com“. You can replace these with your own domain names or IP addresses to suit your needs. Login to the server system to...

• TECHPULP | How to safely remove a file that contains sensitive data in Linux
  Typically a file removal operation, in Linux or any other operating system, doesn’t actually erase all contents of the file. Though the file is logically deleted and doesn’t appear to the be present, its contents still present in the hard...
• TECHPULP | How to use VNC client/viewer in Linux
  The VNC bridges gap between Windows and Linux systems for desktop sharing. However there are few other alternatives to this. The “vnc” package provides a VNC client (vncviewer) in Linux. You can check if your system has vnc package installed...

• TECHPULP | How to access files in Linux partitions from Microsoft Windows
  Microsoft Windows doesn’t recognize Linux partitions and doesn’t provide any file system drivers for accessing Linux partitions with EXT2/EXT3 file systems. However there are some open source tools which can be used for this purpose. Explore2fs The best and safest...
• TECHPULP | How to create a patch file in Linux using diff command
  Patch files describe the differences between two versions of same project and it is the favourite way of exchanging differences among developers. Patch files come in handy when the project is huge and exchanging whole source code is not so...

• TECHPULP | How to kill a process in Unix/Linux
  There are multiple commands supported in UNIX/Linux to kill a process. The most-used command is “kill” command which expects PID of the process which can be retrieved from the output of “ps” command. To kill a process named httpd, first...
• TECHPULP | How to use “diff” utility effectively
  The command line tool “diff” helps you find differences between two files or directories. It also can report the differences between two directories including all files and sub directories recursively. Compute differences between two files: [neo@techpulp ~]# diff animals1.txt animals2.txt...

• TECHPULP | How to find if two binary files differ or not
  The standard “diff” command can be used to find if two binary files differ from each other or not. The following example shows how to do it. [neo@techpulp ~]# diff file1.bin  file2.bin Binary files file1.bin and file2.bin differ [neo@techpulp ~]#...
• TECHPULP | Where is kedit editor in KDE of Fedora 10
  In Fedora 10, the standard KDE text editor kedit is not present. The default text editor in KDE is kwrite instead of kedit. To open kwrite you can go to “Fedora Menu > Applications > Utilities > Text Editor (kwrite)”....