Help with Linux terminal questions. Please explain solutions if possible. Thank you.

Linux records all types of data to improve the system performance. The /proc directory contains snapshots of various types of data. On eniac, the contents of the /proc/diskstats file at a particular time is this: 7777777788 8 8 7777777777777 loope 121 @ 2266 512 0 0 0 20 32 1 loop1 41 232 388 @ @ @ @ @ @ 2 loop2 41 0 232 416 0 0 0 0 0 0 0 3 loop3 752 3548 7040 @ @ @ @ 384 5876 4 loop4 46 0 242 208 0 0 0 0 0 0 0 5 loop5 94 @ 2194 1800 0 0 0 0 248 980 6 op6 512 @ 3040 972 0 0 0 0 0 20 100 7 loop7 17 88 436 0 0 0 0 0 0 0 sda 123437 14467 5107144 960340 10127319 2067725 172524864 197478524 @ 12056004 198497892 1 sda1 121685 14467 5020298 957216 10054465 2067725 172524864 197356548 @ 12039776 198371448 2 sda2 7 0 14 140 O O O O O 140 140 5 sda5 453 38720 1536 @ @ 1149 1536 8 loop8 17 88 324 @ @ @ @ @ @ 9 loop9 19 92 332 O OOOOOO 10 loop10 19 92 268 0 0 0 0 0 0 0 11 loop11 177 2544 1188 0 0 0 0 24 96 12 loop12 212 1014 1444 0 292 292 13 loop13 150 2326 980 000 44 164 14 loop14 13119 28824 2032 0 0 0 72 1208 15 loop 15 46 @ 242 1104 @ @ @ @ 16 loop16 110 2244 1124 0 0 0 0 4 12 17 loop17 12925 @ 27884 180168 @ @ 3780 95280 18 loop18 116 @ 2250 2020 @ @ 316 644 19 loop 19 538 3072 768 B 20 60 20 loop20 2083 4768 196 @ O O O O 8 184 21 loop21 6 24 O O O O O O To understand this output we need help. The man page for /proc on eniac, which we can read by typing the command, man proc tells us that the contents of /proc/diskstats are explained in the Linux kernel source file "Documentation/iostats.txt". That file and other Linux documentation can be found on our server in the directory tells us that the contents of /proc/diskstats are explained in the Linux kernel source file "Documentation/iostats.txt". That file and other Linux documentation can be found on our server in the directory /data/biocs/b/ubuntu/bionic/Documentation/. Knowing that eniac is running Linux 4.15, answer the following questions. Q2.1 Reads Completed 10 Points How many reads have been completed since this machine was booted on device sdal ? Enter your answer here Save Answer Q2.2 Writes completed 10 Points How many writes have been completed since this machine was booted on device sdal? Enter your answer here Save Answer Q2.3 Time spent 10 Points How many milliseconds have been spent by all writes on sda? Enter your answer here Save