This is unix tools and scripting. For all of these questions, you may NOT use: grep, sed, awk, or per if, for, while, until, case, or read.

For each of the following commands, state: i) which program opens and reads the input file, and ii) how shasum receives the file's contents.

a) shasum Meditations.txt i) ii) b) cat Meditations.txt | shasum i) ii) c) shasum < Meditations.txt i) ii)

Your efforts are appreciated. Thank you very much !

*update* example about shasum in following :

Give a command to replace all of the capital X characters with lower case x characters in the books corpus. [e]

cat * | tr 'X' 'x' | shasum e424cc5e4fae61474f7a7622b2daeb2340999602 -