Git Bash cmds - Unix like (Wk 2 UCSD)

Question 1

pipe the output of cat foo.txt to wc command input

Answer 1

cat foo.txt | wc

Question 2

what is a filter command

Answer 2

takes inputs and transforms, placed after unix pipe

Question 3

count the number of files in a dir w/ the word fruit in them

Answer 3

ls | grep fruit | wc -l

Question 4

count the number of unique lines in a txt file using pipes

Answer 4

uniq file.txt | wc -l

Question 5

command to report process status

Answer 5

ps (has multiple options)

Question 6

useful commands for text analysis

Answer 6

cat, grep, wc, sort, uniq, head, tail, cut, sed, find

Question 7

head command

Answer 7

listing the first n lines of a text file

Question 8

tail command

Answer 8

lists the last n lines of a text file or input stream

Question 9

cut sommand

Answer 9

cut a portion of each line in a file

Question 10

SED command (stream editor)

Answer 10

basic text transformations on an input stream

Question 11

find command

Answer 11

quick searches in our file sys hierarchy