removed extra unnesserary codes

Author: ZabihollahNamazi

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

@@ -4,5 +4,5 @@ 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...".
-cyf@MacBookPro individual-shell-tools % cat helper-files/helper-1.txt 
+cat helper-files/helper-1.txt 
 

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

@@ -11,5 +11,5 @@ set -euo pipefail
 # It looked delicious.
 # I was tempted to take a bite of it.
 # But this seemed like a bad idea...
-cyf@MacBookPro individual-shell-tools % cat helper-files/helper-*.txt
+cat helper-files/helper-*.txt
 

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

@@ -9,4 +9,4 @@ set -euo pipefail
 # 1 It looked delicious.
 # 2 I was tempted to take a bite of it.
 # 3 But this seemed like a bad idea...
-cyf@MacBookPro individual-shell-tools % cat -n helper-files/helper-3.txt
+cat -n helper-files/helper-3.txt

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

@@ -13,4 +13,4 @@ set -euo pipefail
 # 3 It looked delicious.
 # 4 I was tempted to take a bite of it.
 # 5 But this seemed like a bad idea...
-cyf@MacBookPro individual-shell-tools % cat helper-files/* | nl -v 1 -n ln
+cat helper-files/* | nl -v 1 -n ln