ls and cat

Author: RahmaB1

individual-shell-tools/cat/script-01.sh

@@ -4,3 +4,6 @@ set -euo pipefail
 
 # TODO: Write a command to output the contents of the helper-1.txt file inside the helper-files directory to the terminal.
 # The output of this command should be "Once upon a time...".
+cd ..
+cd helper-files
+cat helper-1.txt

individual-shell-tools/cat/script-02.sh

@@ -1,6 +1,9 @@
 #!/bin/bash
 
 set -euo pipefail
+cd ..
+cd helper-files
+cat helper-1.txt helper-2.txt helper-3.txt
 
 # TODO: Write a command to output the contents of all of the files inside the helper-files directory to the terminal.
 # Make sure you are only calling `cat` once.

individual-shell-tools/cat/script-03.sh

@@ -2,6 +2,9 @@
 
 set -euo pipefail
 
+cd ..
+cd helper-files
+cat -n helper-3.txt 
 # TODO: Write a command to output the contents of the file `helper-3.txt` inside the helper-files directory to the terminal.
 # This time, we also want to see the line numbers in the output.
 #

individual-shell-tools/cat/script-04-stretch.sh

@@ -1,6 +1,10 @@
 #!/bin/bash
 
 set -euo pipefail
+cd ..
+cd helper-files
+
+cat helper-1.txt helper-2.txt helper-3.txt | cat -n
 
 # NOTE: This is a stretch exercise - it is optional.
 

individual-shell-tools/ls/script-01.sh

@@ -13,3 +13,5 @@ fi
 
 # TODO: Write a command to list the files and folders in this directory.
 # The output should be a list of names including child-directory, script-01.sh, script-02.sh, and more.
+
+ls

individual-shell-tools/ls/script-02.sh

@@ -4,3 +4,5 @@ set -euo pipefail
 
 # TODO: Write a command which lists all of the files in the directory named child-directory.
 # The output should be a list of names: helper-1.txt, helper-2.txt, helper-3.txt.
+ls child-directory 
+

individual-shell-tools/ls/script-03.sh

@@ -5,3 +5,4 @@ set -euo pipefail
 # TODO: Write a command which _recursively_ lists all of the files and folders in this directory _and_ all of the files inside those folders.
 # The output should be a list of names including: child-directory, script-01.sh, helper-1.txt (and more).
 # The formatting of the output doesn't matter.
+ls -R

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

@@ -15,9 +15,11 @@ 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 -t -1
 
 echo "Second exercise (sorted oldest to newest):"
 
+ls -tr -1 
+
 # TODO: Write a command which does the same as above, but sorted in the opposite order (oldest first).
 # The output should be a list of names in this order, one per line: helper-2.txt, helper-1.txt, helper-3.txt.