From 8ddfcd34120b313cef46d299019ab46baeef7ece Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <zamfir.sorin@yahoo.com>
Date: Fri, 3 Jan 2020 21:35:30 +0200
Subject: [PATCH 1/7] BAEL-3451: First samples

---
 .../functions/src/main/bash/functions.sh      | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 linux-bash/functions/src/main/bash/functions.sh

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
new file mode 100644
index 0000000000..5c994e88be
--- /dev/null
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+
+
+# simple input and output
+# variable shadowing
+# nesting and recursion
+
+
+function simple_inputs() {
+    echo "This is the first argument [$1]"
+    echo "This is the second argument [$2]"
+    echo "Calling function with $# aruments"
+}
+
+global_variable="lorem"
+function simple_outputs() {
+    sum=$(($1+$2)) 
+    echo "Sum is $sum"
+    global_variable="dolor"
+    # this is just the status code
+    # does not work if we want to return 
+    # other than numerical 
+    return $sum
+}
+
+# missing brackets still works
+# as long as we have compound commands
+function simple_for_loop()
+    # echo "Looping through numbers"
+    for ((i=0;i<5;++i)) do
+        echo -n " "$i;
+    done
+
+function simple_comparison()
+    if [[ "$1" -lt 5 ]]; then
+        echo "$1 is smaller than 5"
+    else
+        echo "$1 is greater than 5"
+    fi
+
+# command groups with subshells 
+# with the limitation of new enviornments
+function simple_subshell()
+    (
+        echo "I'm a little tea pot"
+        simple_comparison 10
+        cd ..
+        global_variable="ipsum"
+    )
+
+function fibonnaci_recursion() {
+    argument=$1
+    if [[ "$argument" -eq 0 ]] || [[ "$argument" -eq 1 ]]; then
+        echo $argument
+    else
+        first=$(fibonnaci_recursion $(($argument-1)))
+        second=$(fibonnaci_recursion $(($argument-2)))
+        echo $(( $first + $second ))
+    fi 
+}
+
+
+
+simple_inputs one two three
+simple_outputs 1 2
+simple_for_loop
+simple_comparison 6
+simple_comparison 4
+simple_subshell
+echo $global_variable
+
+#echo $(fibonnaci_recursion 7)

From 50d7f321c5186782aa7d35d9ea9054c7877a396a Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 5 Jan 2020 00:35:53 +0200
Subject: [PATCH 2/7] BAEL-3451: Some more examples

---
 .../functions/src/main/bash/functions.sh      | 60 ++++++++++++++-----
 1 file changed, 45 insertions(+), 15 deletions(-)
 mode change 100644 => 100755 linux-bash/functions/src/main/bash/functions.sh

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
old mode 100644
new mode 100755
index 5c994e88be..33af9d3fcb
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -5,6 +5,26 @@
 # variable shadowing
 # nesting and recursion
 
+simple_function() {
+    echo "First"
+    for ((i=0;i<5;++i)) do
+        echo -n " "$i" ";
+    done
+}
+
+function simple_function {
+    echo "Second"
+    for ((i=0;i<5;++i)) do
+        echo -n " "$i" ";
+    done
+}
+
+# missing brackets still works
+# as long as we have compound commands
+function simple_for_loop()
+    for ((i=0;i<5;++i)) do
+        echo -n " "$i" ";
+    done
 
 function simple_inputs() {
     echo "This is the first argument [$1]"
@@ -12,15 +32,21 @@ function simple_inputs() {
     echo "Calling function with $# aruments"
 }
 
-global_variable="lorem"
+# global_variable="lorem"
+# sum=0
+# function simple_outputs() {
+#     sum=$(($1+$2)) 
+#     global_variable="dolor"
+# }
+
 function simple_outputs() {
     sum=$(($1+$2)) 
-    echo "Sum is $sum"
-    global_variable="dolor"
-    # this is just the status code
-    # does not work if we want to return 
-    # other than numerical 
-    return $sum
+    echo $sum
+}
+
+function ref_outputs() {
+    declare -n sum_ref=$3
+    sum_ref=$(($1+$2)) 
 }
 
 # missing brackets still works
@@ -60,13 +86,17 @@ function fibonnaci_recursion() {
 }
 
 
-
-simple_inputs one two three
-simple_outputs 1 2
-simple_for_loop
-simple_comparison 6
-simple_comparison 4
-simple_subshell
-echo $global_variable
+#simple_function
+# simple_inputs one 'two three'
+# sum=$(simple_outputs 1 2)
+# echo "Sum is $sum"
+# sum=0
+ref_outputs 1 9 sumt
+echo "Sum is $sumt"
+# simple_for_loop
+# simple_comparison 6
+# simple_comparison 4
+# simple_subshell
+# echo $global_variable
 
 #echo $(fibonnaci_recursion 7)

From f86e225d162ef8689f1def8dbbf5d6d702222d69 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sat, 11 Jan 2020 22:51:19 +0200
Subject: [PATCH 3/7] BAEL-3451: More samples

---
 .../functions/src/main/bash/functions.sh      | 75 ++++++++++++++++---
 linux-bash/functions/src/main/bash/infile     |  3 +
 2 files changed, 69 insertions(+), 9 deletions(-)
 create mode 100644 linux-bash/functions/src/main/bash/infile

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
index 33af9d3fcb..affe168310 100755
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -66,14 +66,32 @@ function simple_comparison()
 
 # command groups with subshells 
 # with the limitation of new enviornments
+sum=0
 function simple_subshell()
     (
-        echo "I'm a little tea pot"
-        simple_comparison 10
-        cd ..
-        global_variable="ipsum"
+        declare -n sum_ref=$3
+        sum_ref=$(($1+$2))
+        # sum=$(($1+$2))
     )
 
+# variable shadowing
+variable="baeldung"
+function variable_scope(){
+    local variable="lorem"
+    echo "Variable inside function variable_scope : [$variable]"
+    variable_scope2
+}
+
+function variable_scope2(){
+    echo "Variable inside function variable_scope2 : [$variable]"
+    local variable="ipsum"
+    variable_scope3
+}
+
+function variable_scope3(){
+    echo "Variable inside function variable_scope3 : [$variable]"
+}
+
 function fibonnaci_recursion() {
     argument=$1
     if [[ "$argument" -eq 0 ]] || [[ "$argument" -eq 1 ]]; then
@@ -85,18 +103,57 @@ function fibonnaci_recursion() {
     fi 
 }
 
+function redirection_in() {
+    # echo "$1"
+    while read input;
+        do
+            echo "$input"
+        done
+} < infile
+
+function redirection_in_ps() {
+    while read input;
+        do
+            echo "$input"
+        done
+} < <(ls -ll /)
+
+
+function redirection_out_ps(){
+    declare -a output=("baeldung" "lorem" "ipsum" "caracg")
+    for element in "${output[@]}"
+        do
+            echo "$element"
+        done
+} > >(grep "g")
+
+function redirection_out() {
+    declare -a output=("baeldung" "lorem" "ipsum")
+    for element in "${output[@]}"
+        do
+            echo "$element"
+        done
+} > outfile
 
 #simple_function
 # simple_inputs one 'two three'
 # sum=$(simple_outputs 1 2)
 # echo "Sum is $sum"
 # sum=0
-ref_outputs 1 9 sumt
-echo "Sum is $sumt"
+# ref_outputs 1 9 sumt
+# echo "Sum is $sumt"
 # simple_for_loop
 # simple_comparison 6
 # simple_comparison 4
-# simple_subshell
-# echo $global_variable
+simple_subshell 1 2 sum
+echo "Sum is $sum"
 
-#echo $(fibonnaci_recursion 7)
+#variable_scope
+# echo "Variable outside function variable_scope : [$variable]"
+# FUNCNEST=5
+# echo $(fibonnaci_recursion 7)
+# echo $(fibonnaci_recursion 15)
+# redirection_in 
+# redirection_in_ps
+# redirection_out
+# redirection_out_ps
diff --git a/linux-bash/functions/src/main/bash/infile b/linux-bash/functions/src/main/bash/infile
new file mode 100644
index 0000000000..b1fa680af4
--- /dev/null
+++ b/linux-bash/functions/src/main/bash/infile
@@ -0,0 +1,3 @@
+Honda  Insight  2010
+Honda  Element  2006
+Chevrolet  Avalanche  2002

From 09a183cd7a35912f6aa4939d25611b7405ad038d Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 12 Jan 2020 11:13:00 +0200
Subject: [PATCH 4/7] BAEL-3451: Organized code snippets

---
 .../functions/src/main/bash/functions.sh      | 132 ++++++++----------
 1 file changed, 59 insertions(+), 73 deletions(-)

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
index affe168310..64007f38d8 100755
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -1,10 +1,6 @@
 #!/bin/bash
 
-
-# simple input and output
-# variable shadowing
-# nesting and recursion
-
+# Subsection 2.1
 simple_function() {
     echo "First"
     for ((i=0;i<5;++i)) do
@@ -19,44 +15,11 @@ function simple_function {
     done
 }
 
-# missing brackets still works
-# as long as we have compound commands
 function simple_for_loop()
     for ((i=0;i<5;++i)) do
         echo -n " "$i" ";
     done
 
-function simple_inputs() {
-    echo "This is the first argument [$1]"
-    echo "This is the second argument [$2]"
-    echo "Calling function with $# aruments"
-}
-
-# global_variable="lorem"
-# sum=0
-# function simple_outputs() {
-#     sum=$(($1+$2)) 
-#     global_variable="dolor"
-# }
-
-function simple_outputs() {
-    sum=$(($1+$2)) 
-    echo $sum
-}
-
-function ref_outputs() {
-    declare -n sum_ref=$3
-    sum_ref=$(($1+$2)) 
-}
-
-# missing brackets still works
-# as long as we have compound commands
-function simple_for_loop()
-    # echo "Looping through numbers"
-    for ((i=0;i<5;++i)) do
-        echo -n " "$i;
-    done
-
 function simple_comparison()
     if [[ "$1" -lt 5 ]]; then
         echo "$1 is smaller than 5"
@@ -64,47 +27,58 @@ function simple_comparison()
         echo "$1 is greater than 5"
     fi
 
-# command groups with subshells 
-# with the limitation of new enviornments
-sum=0
-function simple_subshell()
-    (
-        declare -n sum_ref=$3
-        sum_ref=$(($1+$2))
-        # sum=$(($1+$2))
-    )
+# Subsection 2.2
+function simple_inputs() {
+    echo "This is the first argument [$1]"
+    echo "This is the second argument [$2]"
+    echo "Calling function with $# aruments"
+}
 
-# variable shadowing
+# Subsection 2.3
+sum=0
+function simple_outputs() {
+    sum=$(($1+$2)) 
+}
+
+function simple_outputs() {
+    sum=$(($1+$2)) 
+    echo $sum
+}
+
+# Subsection 2.4
+function ref_outputs() {
+    declare -n sum_ref=$3
+    sum_ref=$(($1+$2)) 
+}
+
+# Subsection 3.1
 variable="baeldung"
+function variable_scope2(){
+    echo "Variable inside function variable_scope2 : [$variable]"
+    local variable="ipsum"
+}
+
 function variable_scope(){
     local variable="lorem"
     echo "Variable inside function variable_scope : [$variable]"
     variable_scope2
 }
 
-function variable_scope2(){
-    echo "Variable inside function variable_scope2 : [$variable]"
-    local variable="ipsum"
-    variable_scope3
-}
+# Subsection 3.2
+sum=0
+function simple_subshell()
+    (
+        sum=$(($1+$2))
+    )
 
-function variable_scope3(){
-    echo "Variable inside function variable_scope3 : [$variable]"
-}
-
-function fibonnaci_recursion() {
-    argument=$1
-    if [[ "$argument" -eq 0 ]] || [[ "$argument" -eq 1 ]]; then
-        echo $argument
-    else
-        first=$(fibonnaci_recursion $(($argument-1)))
-        second=$(fibonnaci_recursion $(($argument-2)))
-        echo $(( $first + $second ))
-    fi 
-}
+function simple_subshell_ref() 
+    (
+        declare -n sum_ref=$3
+        sum_ref=$(($1+$2))
+    )
 
+# Subsection 3.3
 function redirection_in() {
-    # echo "$1"
     while read input;
         do
             echo "$input"
@@ -112,13 +86,13 @@ function redirection_in() {
 } < infile
 
 function redirection_in_ps() {
-    while read input;
+    read
+    while read -a input;
         do
-            echo "$input"
+            echo "${input[2]} ${input[8]}"
         done
 } < <(ls -ll /)
 
-
 function redirection_out_ps(){
     declare -a output=("baeldung" "lorem" "ipsum" "caracg")
     for element in "${output[@]}"
@@ -135,6 +109,18 @@ function redirection_out() {
         done
 } > outfile
 
+# Subsection 3.4
+function fibonnaci_recursion() {
+    argument=$1
+    if [[ "$argument" -eq 0 ]] || [[ "$argument" -eq 1 ]]; then
+        echo $argument
+    else
+        first=$(fibonnaci_recursion $(($argument-1)))
+        second=$(fibonnaci_recursion $(($argument-2)))
+        echo $(( $first + $second ))
+    fi 
+}
+
 #simple_function
 # simple_inputs one 'two three'
 # sum=$(simple_outputs 1 2)
@@ -145,8 +131,8 @@ function redirection_out() {
 # simple_for_loop
 # simple_comparison 6
 # simple_comparison 4
-simple_subshell 1 2 sum
-echo "Sum is $sum"
+# simple_subshell 1 2 sum
+# echo "Sum is $sum"
 
 #variable_scope
 # echo "Variable outside function variable_scope : [$variable]"

From 362be8fc7a69a55844b0e8ca8e25ab2baa4ecb38 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 12 Jan 2020 12:14:36 +0200
Subject: [PATCH 5/7] BAEL-3451: Included menu. Not complete

---
 .../functions/src/main/bash/functions.sh      | 110 +++++++++++++++---
 1 file changed, 95 insertions(+), 15 deletions(-)

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
index 64007f38d8..4446113ab3 100755
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -2,14 +2,12 @@
 
 # Subsection 2.1
 simple_function() {
-    echo "First"
     for ((i=0;i<5;++i)) do
         echo -n " "$i" ";
     done
 }
 
-function simple_function {
-    echo "Second"
+function simple_function_no_parantheses {
     for ((i=0;i<5;++i)) do
         echo -n " "$i" ";
     done
@@ -35,18 +33,18 @@ function simple_inputs() {
 }
 
 # Subsection 2.3
-sum=0
-function simple_outputs() {
-    sum=$(($1+$2)) 
+global_sum=0
+function global_sum_outputs() {
+    global_sum=$(($1+$2)) 
 }
 
-function simple_outputs() {
-    sum=$(($1+$2)) 
+function cs_sum_outputs() {
+    sum=$(($1+$2))
     echo $sum
 }
 
 # Subsection 2.4
-function ref_outputs() {
+function arg_ref_sum_outputs() {
     declare -n sum_ref=$3
     sum_ref=$(($1+$2)) 
 }
@@ -54,27 +52,29 @@ function ref_outputs() {
 # Subsection 3.1
 variable="baeldung"
 function variable_scope2(){
-    echo "Variable inside function variable_scope2 : [$variable]"
+    echo "Variable inside function variable_scope2: [$variable]"
     local variable="ipsum"
 }
 
 function variable_scope(){
     local variable="lorem"
-    echo "Variable inside function variable_scope : [$variable]"
+    echo "Variable inside function variable_scope: [$variable]"
     variable_scope2
 }
 
 # Subsection 3.2
-sum=0
-function simple_subshell()
+subshell_sum=0
+function simple_subshell_sum()
     (
-        sum=$(($1+$2))
+        subshell_sum=$(($1+$2))
+        echo "Value of sum in function with global variables: [$subshell_sum]"
     )
 
-function simple_subshell_ref() 
+function simple_subshell_ref_sum() 
     (
         declare -n sum_ref=$3
         sum_ref=$(($1+$2))
+        echo "Value of sum in function with ref arguments: [$sum_ref]"
     )
 
 # Subsection 3.3
@@ -121,6 +121,86 @@ function fibonnaci_recursion() {
     fi 
 }
 
+# main menu entry point
+echo "****Functions samples menu*****"
+PS3="Your choice (1,2,3 etc.):"
+options=("function_definitions" "function_input_args" "function_outputs" \
+         "function_variables" "function_subshells" "function_redirections" \
+         "function_recursion" "quit")
+select option in "${options[@]}"
+do
+    case $option in
+        "function_definitions")
+            echo -e "\n"
+            echo "**Different ways to define a function**"
+            echo -e "No function keyword:"
+            simple_function
+            echo -e "\nNo function parantheses:"
+            simple_function_no_parantheses
+            echo -e "\nOmitting curly braces:"
+            simple_for_loop
+            echo -e "\n"
+            ;;
+        "function_input_args")
+            echo -e "\n"
+            echo "**Passing inputs to a function**"
+            simple_inputs lorem ipsum
+            echo -e "\n"
+            ;;
+        "function_outputs")
+            echo -e "\n"
+            echo "**Getting outputs from a function**"
+            global_sum_outputs 1 2
+            echo -e "1+2 using global variables: [$global_sum]"
+            cs_sum=$(cs_sum_outputs 1 2)
+            echo -e "1+2 using command substitution: [$cs_sum]"
+            arg_ref_sum_outputs 1 2 arg_ref_sum
+            echo -e "1+2 using argument references: [$arg_ref_sum]"
+            echo -e "\n"
+            ;;
+        "function_variables")
+            echo -e "\n"
+            echo "**Overriding variable scopes**"
+            echo "Global value of variable: [$variable]"
+            variable_scope
+            echo -e "\n"
+            ;;
+        "function_subshells")
+            echo -e "\n"
+            echo "**Running function in subshell**"
+            echo "Global value of sum: [$subshell_sum]"
+            simple_subshell_sum 1 2
+            echo "Value of sum after subshell function with \
+global variables: [$subshell_sum]"
+            subshell_sum_arg_ref=0
+            simple_subshell_ref_sum 1 2 subshell_sum_arg_ref
+            echo "Value of sum after subshell function with \
+ref arguments: [$subshell_sum_arg_ref]"
+            echo -e "\n"
+            ;;
+        "function_redirections")
+            echo -e "\n"
+            echo "**Function redirections**"
+            echo -e "File input redirection:"
+            redirection_in
+            echo -e "Command input redirection:"
+            redirection_in_ps
+            ;;
+        # "timeout_input_read")
+        #     echo "Enter something in 5 seconds or less"
+        #     timeout_input_read
+        #     ;;
+        # "exactly_n_read")
+        #     echo "Enter at least 11 characters or wait 5 seconds"
+        #     exactly_n_read
+        #     ;;
+        "quit")
+            break
+            ;;
+        *) echo "Invalid option";;
+    esac
+done
+
 #simple_function
 # simple_inputs one 'two three'
 # sum=$(simple_outputs 1 2)

From 9f2a1688b248c93f0cf311d903730be279958f48 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 12 Jan 2020 15:08:54 +0200
Subject: [PATCH 6/7] BAEL-3451: Working version

---
 .../functions/src/main/bash/functions.sh      | 61 +++++++------------
 1 file changed, 23 insertions(+), 38 deletions(-)

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
index 4446113ab3..4b90de0959 100755
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -89,7 +89,7 @@ function redirection_in_ps() {
     read
     while read -a input;
         do
-            echo "${input[2]} ${input[8]}"
+            echo "User[${input[2]}]->File[${input[8]}]"
         done
 } < <(ls -ll /)
 
@@ -151,11 +151,11 @@ do
             echo -e "\n"
             echo "**Getting outputs from a function**"
             global_sum_outputs 1 2
-            echo -e "1+2 using global variables: [$global_sum]"
+            echo -e ">1+2 using global variables: [$global_sum]"
             cs_sum=$(cs_sum_outputs 1 2)
-            echo -e "1+2 using command substitution: [$cs_sum]"
+            echo -e ">1+2 using command substitution: [$cs_sum]"
             arg_ref_sum_outputs 1 2 arg_ref_sum
-            echo -e "1+2 using argument references: [$arg_ref_sum]"
+            echo -e ">1+2 using argument references: [$arg_ref_sum]"
             echo -e "\n"
             ;;
         "function_variables")
@@ -181,45 +181,30 @@ ref arguments: [$subshell_sum_arg_ref]"
         "function_redirections")
             echo -e "\n"
             echo "**Function redirections**"
-            echo -e "File input redirection:"
+            echo -e ">Function input redirection from file:"
             redirection_in
-            echo -e "Command input redirection:"
+            echo -e ">Function input redirection from command:"
             redirection_in_ps
+            echo -e ">Function output redirection to file:"
+            redirection_out
+            cat outfile
+            echo -e ">Function output redirection to command:"
+            red_ps=$(redirection_out_ps)
+            echo "$red_ps"
+            echo -e "\n"
+            ;;
+        "function_recursion")
+            echo -e "\n"
+            echo "**Function recursion**"
+            fibo_res1=$(fibonnaci_recursion 7)
+            echo "The 7th Fibonnaci number: [$fibo_res1]"
+            fibo_res2=$(fibonnaci_recursion 15)
+            echo "The 15th Fibonnaci number: [$fibo_res2]"
+            echo -e "\n"
             ;;
-        # "timeout_input_read")
-        #     echo "Enter something in 5 seconds or less"
-        #     timeout_input_read
-        #     ;;
-        # "exactly_n_read")
-        #     echo "Enter at least 11 characters or wait 5 seconds"
-        #     exactly_n_read
-        #     ;;
         "quit")
             break
             ;;
         *) echo "Invalid option";;
     esac
-done
-
-#simple_function
-# simple_inputs one 'two three'
-# sum=$(simple_outputs 1 2)
-# echo "Sum is $sum"
-# sum=0
-# ref_outputs 1 9 sumt
-# echo "Sum is $sumt"
-# simple_for_loop
-# simple_comparison 6
-# simple_comparison 4
-# simple_subshell 1 2 sum
-# echo "Sum is $sum"
-
-#variable_scope
-# echo "Variable outside function variable_scope : [$variable]"
-# FUNCNEST=5
-# echo $(fibonnaci_recursion 7)
-# echo $(fibonnaci_recursion 15)
-# redirection_in 
-# redirection_in_ps
-# redirection_out
-# redirection_out_ps
+done
\ No newline at end of file

From 135e9359bdfd0b238dea8cfc9b30c8c667cfc9ee Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Tue, 14 Jan 2020 22:27:23 +0200
Subject: [PATCH 7/7] BAEL-3451: Fixed formatting

---
 .../functions/src/main/bash/functions.sh      | 26 +++++++++----------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/linux-bash/functions/src/main/bash/functions.sh b/linux-bash/functions/src/main/bash/functions.sh
index 4b90de0959..41ff0ca434 100755
--- a/linux-bash/functions/src/main/bash/functions.sh
+++ b/linux-bash/functions/src/main/bash/functions.sh
@@ -51,12 +51,12 @@ function arg_ref_sum_outputs() {
 
 # Subsection 3.1
 variable="baeldung"
-function variable_scope2(){
+function variable_scope2() {
     echo "Variable inside function variable_scope2: [$variable]"
     local variable="ipsum"
 }
 
-function variable_scope(){
+function variable_scope() {
     local variable="lorem"
     echo "Variable inside function variable_scope: [$variable]"
     variable_scope2
@@ -64,18 +64,16 @@ function variable_scope(){
 
 # Subsection 3.2
 subshell_sum=0
-function simple_subshell_sum()
-    (
-        subshell_sum=$(($1+$2))
-        echo "Value of sum in function with global variables: [$subshell_sum]"
-    )
+function simple_subshell_sum() (
+    subshell_sum=$(($1+$2))
+    echo "Value of sum in function with global variables: [$subshell_sum]"
+)
 
-function simple_subshell_ref_sum() 
-    (
-        declare -n sum_ref=$3
-        sum_ref=$(($1+$2))
-        echo "Value of sum in function with ref arguments: [$sum_ref]"
-    )
+function simple_subshell_ref_sum() (
+    declare -n sum_ref=$3
+    sum_ref=$(($1+$2))
+    echo "Value of sum in function with ref arguments: [$sum_ref]"
+)
 
 # Subsection 3.3
 function redirection_in() {
@@ -93,7 +91,7 @@ function redirection_in_ps() {
         done
 } < <(ls -ll /)
 
-function redirection_out_ps(){
+function redirection_out_ps() {
     declare -a output=("baeldung" "lorem" "ipsum" "caracg")
     for element in "${output[@]}"
         do