updates

Author: ZabihollahNamazi

individual-shell-tools/awk/script-06-stretch.sh

@@ -6,6 +6,4 @@ set -euo pipefail
 
 # TODO: Write a command to output the total of adding together all players' first scores.
 # Your output should be exactly the number 54.
-awk '{
-  for(i=3;i<=3;i++) total += $i
-} END {print total}' scores-table.txt
+awk '{ total += $3 } END { print total }' scores-table.txt

individual-shell-tools/grep/script-06.sh

@@ -4,4 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output the name of every `.txt` file in this directory which contains a line of dialogue said by the Doctor.
 # The output should contain two filenames.
-grep -h '^Doctor:' dialogue*.txt
+grep -l '^Doctor:' dialogue*.txt

individual-shell-tools/ls/script-04.sh

@@ -15,7 +15,7 @@ echo "First exercise (sorted newest to oldest):"
 
 # TODO: Write a command which lists the files in the child-directory directory, one per line, sorted so that the most recently modified file is first.
 # The output should be a list of names in this order, one per line: helper-3.txt, helper-1.txt, helper-2.txt.
-ls % ls -1t child-directory
+ls -1t child-directory
 
 echo "Second exercise (sorted oldest to newest):"