Write the command that can be used to perform the following: Compress the symbolic link /root/sfile using the compress utility and display the compression ratio. Compress the contents of the directory /root/dir1 using the gzip utility and display the compression ratio. View the contents of the file /root/letter. zip. Compress the file /root/letter using xz fast compression. Find the compression ratio of the file /root/letter. gz. Perform a test compression of the file /root/sample using the bzip2 utility. Compress the file /root/sample using the bzip2 utility while minimizing memory usage during the compression.

On early television stations, what typically filled the screen from around 11pm until 6am? test dummies test patterns tests testing colors

The option enables you to modify a slide element in most presentation applications.

Write a new lc-3 trap subroutine (i.e. a subroutine that will be invoked via the trap instruction) that will receive a numeric digit entered at the keyboard (i.e. an ascii character), echo it to the screen, and return in r0 the corresponding numeric value: so if the user types the digit '7', the character '7' will appear on the screen, but the value returned in r0 will be b0000 0000 0000 0111 (#7) you may not use any trap calls in your code - you must implement the "polling" code that interrogates the keyboard status and data registers. ; getnum_tsr ; a subroutine for obtaining a numeric value ; given ascii numeric digit input to keyboard. ; the numeric digit is echoed to the console (e.g. '7' = b0000 0000 0011 0111), ; but the value returned in r0 is the actual numeric value ; corresponding to the digit (e.g. b0000 0000 0000 0111 =