Articles

 'cat' command in linux

        cat – concatenate files and print on the standard...

 'cp' command in linux

    cp - copy files and directories.  Format: cp [options] source...

 'kill' command in linux

       kill – it is used for stopping processes    ...

 'mkdir' command in linux

    mkdir – create one or more directories  Format mkdir [options]...

 'mv' command in linux

       mv – renames and move files     Format mv...

 'ps' command in linux

      ps - gives a snapshot of the current running processes.  ...

 'rm' command in linux

        rm – removes a file or directory      ...

 'w' command in linux

           w - shows which all users logged in and what they are...

 How to find files in linux through the command 'find'?

      find – searches for a file in directory hierarchy.  ...

 How to login to remote machine through 'ssh' command?

       ssh - is a program for logging into a remote machine and for...

 How to set a cronjob in linux?

      crontab - it is used for scheduling jobs, commands etc.The entry consist of...

 The 'useradd' command in linux

         useradd : it is used to add an user     ...

 The best compression method in lunux.

   The best way to compress the files and folders to use the command bzip2.  ...

 The command to change the file attributes.

      chattr - change file attributes     Format: chattr [-RV]...

 The use of rpm command in linux.

      rpm(redhat package manager)       rpm – installer...

 Use of sudo command in linux

    sudo - execute a command as another user.  Format: sudo [options]...

 command to change the access permissions in linux.

       chmod – change the access permissions.    ...

 command to set file access control list.

    setfacl - it is used for granting read,write,execute access to files and...

 command used to archieve files and directories into a single file.

  tar – it is used for archieving files and directories into a single file  ...

 command used to compress files in linux.

        gzip,gunzip – compress or expand files.   ...

 for what purpose the commad 'du' is used for?

      du- estimates the file space usage.   Format: du [options] [file]...

 for what the command 'tail' is used for?

  tail – print the last 10 lines of the named file.If more than one file is specified...

 purpose of 'touch' command

    touch - changes the date and time of the file to the current date/time.If the file...

 su command in linux.

            su - run a shell with substitute user and group...

 what is the command 'ls' used for?

       ls – list directory contents.    ...

 what is the use of command 'grep'?

    grep- search one or more files that matches a regular pattern  Format:...