From 57934f602c4610a2dcf1ba04c83fca2bb49b77f5 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 1 Dec 2019 23:00:04 +0200
Subject: [PATCH 1/8] BAEL-3370: First examples

---
 linux-bash/read/src/main/dummy_file     |  7 +++
 linux-bash/read/src/main/read_inputs.sh | 83 +++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 linux-bash/read/src/main/dummy_file
 create mode 100755 linux-bash/read/src/main/read_inputs.sh

diff --git a/linux-bash/read/src/main/dummy_file b/linux-bash/read/src/main/dummy_file
new file mode 100644
index 0000000000..4c581fc816
--- /dev/null
+++ b/linux-bash/read/src/main/dummy_file
@@ -0,0 +1,7 @@
+Lorem Ipsum is simply dummy text of the printing and typesetting industry. 
+Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, 
+when an unknown printer took a galley of type and scrambled it to make a type specimen book. 
+It has survived not only five centuries, but also the leap into electronic typesetting, 
+remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset 
+sheets containing Lorem Ipsum passages, and more recently with desktop publishing software 
+like Aldus PageMaker including versions of Lorem Ipsum.
\ No newline at end of file
diff --git a/linux-bash/read/src/main/read_inputs.sh b/linux-bash/read/src/main/read_inputs.sh
new file mode 100755
index 0000000000..4351a27e60
--- /dev/null
+++ b/linux-bash/read/src/main/read_inputs.sh
@@ -0,0 +1,83 @@
+#!/bin/bash
+
+
+default_read() {
+    echo "Please enter something:"
+    read first second third
+    echo "first word [$first]"
+    echo "second word [$second]"
+    echo "third word [$third]"
+}
+
+array_read() {
+    declare -a input_array
+    echo "Please enter something:"
+    read -a input_array
+    for input in ${input_array[@]} 
+        do
+            echo " Word [$input]"
+        done
+}
+
+special_delim() {
+    echo "Please enter something:"
+    read -d ";" first second third
+    echo "first word [$first]"
+}
+
+file_read(){
+    # open file descriptor for reading
+    exec {file_descriptor}<"./dummy_file"
+    declare -a input_array
+    echo "Reading first line from file"
+    read -a input_array -u $file_descriptor 
+    for input in ${input_array[@]} 
+        do
+            echo " Word [$input]"
+        done
+    exec {file_descriptor}>&-
+}
+
+prompt_read(){
+    echo "With prompt :"
+    prompt="You shall not pass:"
+    read -p "$prompt" input
+    echo "word -> [$input]"
+}
+
+default_input_read(){
+    echo "Default input read:"
+    prompt=$'What\'s up doc: \n'
+    default_input="Nothing much just killing time"
+    read -e -p "$prompt" -i "$default_input" actual_input
+    echo "word -> [$actual_input]"
+}
+
+advanced_pipeing(){
+    ls | (read -p "Input from ls" input; echo "Single read -> [$input]")
+    ls | (while IFS= read input; 
+            do
+                echo "$input"
+            done )
+    # process substitution
+    while read input
+    do
+        echo "$input"
+    done < <(ls)
+
+}
+
+#default_read
+#array_read
+#special_delim
+#file_read
+#prompt_read
+#default_input_read
+advanced_pipeing
+
+
+
+
+
+
+

From d64771257a20b589abdac875a5df88cbd185c4fb Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Tue, 3 Dec 2019 20:56:35 +0200
Subject: [PATCH 2/8] BAEL-3370: Some more examples

---
 linux-bash/read/src/main/file.csv       |  2 ++
 linux-bash/read/src/main/read_inputs.sh | 36 ++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 linux-bash/read/src/main/file.csv

diff --git a/linux-bash/read/src/main/file.csv b/linux-bash/read/src/main/file.csv
new file mode 100644
index 0000000000..903384a5b6
--- /dev/null
+++ b/linux-bash/read/src/main/file.csv
@@ -0,0 +1,2 @@
+lorem;ipsum;is\;simply\;du\mmy;text
+of;the;printing;and;typesetting;industry.
diff --git a/linux-bash/read/src/main/read_inputs.sh b/linux-bash/read/src/main/read_inputs.sh
index 4351a27e60..d0dd2c3ea9 100755
--- a/linux-bash/read/src/main/read_inputs.sh
+++ b/linux-bash/read/src/main/read_inputs.sh
@@ -35,6 +35,7 @@ file_read(){
         do
             echo " Word [$input]"
         done
+    # close file descriptor after reading
     exec {file_descriptor}>&-
 }
 
@@ -67,13 +68,46 @@ advanced_pipeing(){
 
 }
 
+custom_ifs_read(){
+    declare -a input_array
+    while IFS=";" read -a input_array -r
+        do
+            for element in ${input_array[@]}
+                do
+                    echo -n "$element.backup "
+                done
+            echo ""
+        done < "file.csv"
+}
+
+infinite_read(){
+    while read -d "?" -ep "Input:" input
+        do
+            echo "$input"
+        done
+}
+
+custom_ifs(){
+    declare -a input_array
+    IFS=$1 # whitespace 
+    read -a input_array -p "Enter something with delimiter <$1>:"
+    for input in ${input_array[@]}
+        do
+            echo "[$input]"
+        done
+}
+
 #default_read
 #array_read
 #special_delim
 #file_read
 #prompt_read
 #default_input_read
-advanced_pipeing
+#advanced_pipeing
+#custom_ifs_read
+#infinite_read
+custom_ifs " "
+custom_ifs ";"
 
 
 

From 5614955b1395e76d688aa22ee767f17e08cf78c3 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Fri, 6 Dec 2019 00:26:42 +0200
Subject: [PATCH 3/8] BAEL-3370: Organized the sample scripts

---
 linux-bash/read/src/main/file.csv       |  3 +-
 linux-bash/read/src/main/read_inputs.sh | 84 +++++++++++++------------
 2 files changed, 45 insertions(+), 42 deletions(-)

diff --git a/linux-bash/read/src/main/file.csv b/linux-bash/read/src/main/file.csv
index 903384a5b6..69a50772ab 100644
--- a/linux-bash/read/src/main/file.csv
+++ b/linux-bash/read/src/main/file.csv
@@ -1,2 +1 @@
-lorem;ipsum;is\;simply\;du\mmy;text
-of;the;printing;and;typesetting;industry.
+car,car model,car year,car vin;Mercury,Grand Marquis,2000,2G61S5S33F9986032;Mitsubishi,Truck,1995,SCFFDABE1CG137362;Ford,Mustang,1968,2G4WS55J351278031;Ford,Crown Victoria,1996,4T1BK1EB8EU586249;GMC,Envoy,2004,WVGEF9BP3FD720618;
diff --git a/linux-bash/read/src/main/read_inputs.sh b/linux-bash/read/src/main/read_inputs.sh
index d0dd2c3ea9..90d08b4199 100755
--- a/linux-bash/read/src/main/read_inputs.sh
+++ b/linux-bash/read/src/main/read_inputs.sh
@@ -1,50 +1,48 @@
 #!/bin/bash
 
-
-default_read() {
-    echo "Please enter something:"
-    read first second third
-    echo "first word [$first]"
-    echo "second word [$second]"
-    echo "third word [$third]"
+# Section 2.3
+prompt_read_password(){
+    prompt="You shall not pass:"
+    read -p "$prompt" -s input
+    echo -e "\ninput password [$input]"
 }
 
 array_read() {
     declare -a input_array
-    echo "Please enter something:"
-    read -a input_array
+    text="baeldung is a cool tech site"
+    read -e -i "$text" -a input_array 
     for input in ${input_array[@]} 
         do
-            echo " Word [$input]"
+            echo " word [$input]"
         done
 }
 
-special_delim() {
-    echo "Please enter something:"
-    read -d ";" first second third
-    echo "first word [$first]"
+# section 2.2
+custom_ifs_no_array(){
+    IFS=";"
+    read input1 input2 input3
+    echo "[$input1] [$input2] [$input3]"
 }
 
+# section 2.1
+default_read() {
+    read input1 input2 input3
+    echo "[$input1] [$input2] [$input3]"
+}
+
+# section 3.1
 file_read(){
-    # open file descriptor for reading
-    exec {file_descriptor}<"./dummy_file"
+    exec {file_descriptor}<"./file.csv"
     declare -a input_array
-    echo "Reading first line from file"
-    read -a input_array -u $file_descriptor 
-    for input in ${input_array[@]} 
+    delimiter=";"
+    while IFS="," read -a input_array -d $delimiter -u $file_descriptor 
         do
-            echo " Word [$input]"
+            echo "${input_array[0]},${input_array[2]}" 
         done
-    # close file descriptor after reading
     exec {file_descriptor}>&-
 }
 
-prompt_read(){
-    echo "With prompt :"
-    prompt="You shall not pass:"
-    read -p "$prompt" input
-    echo "word -> [$input]"
-}
+
 
 default_input_read(){
     echo "Default input read:"
@@ -55,17 +53,20 @@ default_input_read(){
 }
 
 advanced_pipeing(){
-    ls | (read -p "Input from ls" input; echo "Single read -> [$input]")
-    ls | (while IFS= read input; 
-            do
-                echo "$input"
-            done )
-    # process substitution
-    while read input
-    do
-        echo "$input"
-    done < <(ls)
+    ls -ll | ( declare -a input
+               while read -a input; 
+               do
+                   echo "${input[0]} ${input[8]}"
+               done )
+}
 
+advanced_pipeing_ps(){
+# process substitution
+    declare -a input
+    while read -a input
+    do
+        echo "${input[0]} ${input[8]}"
+    done < <(ls -ll)
 }
 
 custom_ifs_read(){
@@ -97,17 +98,20 @@ custom_ifs(){
         done
 }
 
+
+
 #default_read
 #array_read
 #special_delim
-#file_read
+file_read
 #prompt_read
 #default_input_read
 #advanced_pipeing
 #custom_ifs_read
 #infinite_read
-custom_ifs " "
-custom_ifs ";"
+# custom_ifs " "
+# custom_ifs ";"
+#custom_ifs_no_array
 
 
 

From 7da51d09afb37afe7782c9b9bfbff63d33743bcf Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Sun, 8 Dec 2019 23:47:06 +0200
Subject: [PATCH 4/8] BAEL-3370: Updated with some more samples

---
 linux-bash/read/src/main/read_inputs.sh | 35 ++++++++++++++++---------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/linux-bash/read/src/main/read_inputs.sh b/linux-bash/read/src/main/read_inputs.sh
index 90d08b4199..3e071133aa 100755
--- a/linux-bash/read/src/main/read_inputs.sh
+++ b/linux-bash/read/src/main/read_inputs.sh
@@ -42,24 +42,35 @@ file_read(){
     exec {file_descriptor}>&-
 }
 
-
-
-default_input_read(){
-    echo "Default input read:"
-    prompt=$'What\'s up doc: \n'
-    default_input="Nothing much just killing time"
-    read -e -p "$prompt" -i "$default_input" actual_input
-    echo "word -> [$actual_input]"
-}
-
+# section 3.2
 advanced_pipeing(){
-    ls -ll | ( declare -a input
+    ls -ll | { declare -a input
+               read
                while read -a input; 
                do
                    echo "${input[0]} ${input[8]}"
-               done )
+               done }
 }
 
+# section 3.3
+timeout_input_read(){
+    prompt="You shall not pass:"
+    read -p "$prompt" -s -r -t 5 input
+        if [ -z "$input" ]; then
+            echo -e "\ntimeout occured!"
+        else
+            echo -e "\ninput word [$input]"
+        fi
+}
+
+exactly_n_read(){
+    prompt="Reading exactly 11 chars:"
+    read -p "$prompt" -N 11 -t 5 input1 input2 
+    echo -e "\ninput word1 [$input1]"
+    echo "input word2 [$input2]"
+}
+
+
 advanced_pipeing_ps(){
 # process substitution
     declare -a input

From a2b9b697cbbd133a3cb8a769f261d628d7b27988 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Mon, 9 Dec 2019 22:30:42 +0200
Subject: [PATCH 5/8] BAEL-3370: Cleaned up examples

---
 linux-bash/read/src/main/{ => bash}/file.csv  |  0
 .../read/src/main/{ => bash}/read_inputs.sh   | 91 +++----------------
 linux-bash/read/src/main/dummy_file           |  7 --
 3 files changed, 15 insertions(+), 83 deletions(-)
 rename linux-bash/read/src/main/{ => bash}/file.csv (100%)
 rename linux-bash/read/src/main/{ => bash}/read_inputs.sh (60%)
 delete mode 100644 linux-bash/read/src/main/dummy_file

diff --git a/linux-bash/read/src/main/file.csv b/linux-bash/read/src/main/bash/file.csv
similarity index 100%
rename from linux-bash/read/src/main/file.csv
rename to linux-bash/read/src/main/bash/file.csv
diff --git a/linux-bash/read/src/main/read_inputs.sh b/linux-bash/read/src/main/bash/read_inputs.sh
similarity index 60%
rename from linux-bash/read/src/main/read_inputs.sh
rename to linux-bash/read/src/main/bash/read_inputs.sh
index 3e071133aa..c39f77f217 100755
--- a/linux-bash/read/src/main/read_inputs.sh
+++ b/linux-bash/read/src/main/bash/read_inputs.sh
@@ -1,5 +1,18 @@
 #!/bin/bash
 
+# section 2.1
+default_read() {
+    read input1 input2 input3
+    echo "[$input1] [$input2] [$input3]"
+}
+
+# section 2.2
+custom_ifs_no_array(){
+    IFS=";"
+    read input1 input2 input3
+    echo "[$input1] [$input2] [$input3]"
+}
+
 # Section 2.3
 prompt_read_password(){
     prompt="You shall not pass:"
@@ -17,19 +30,6 @@ array_read() {
         done
 }
 
-# section 2.2
-custom_ifs_no_array(){
-    IFS=";"
-    read input1 input2 input3
-    echo "[$input1] [$input2] [$input3]"
-}
-
-# section 2.1
-default_read() {
-    read input1 input2 input3
-    echo "[$input1] [$input2] [$input3]"
-}
-
 # section 3.1
 file_read(){
     exec {file_descriptor}<"./file.csv"
@@ -43,7 +43,7 @@ file_read(){
 }
 
 # section 3.2
-advanced_pipeing(){
+command_pipe(){
     ls -ll | { declare -a input
                read
                while read -a input; 
@@ -68,65 +68,4 @@ exactly_n_read(){
     read -p "$prompt" -N 11 -t 5 input1 input2 
     echo -e "\ninput word1 [$input1]"
     echo "input word2 [$input2]"
-}
-
-
-advanced_pipeing_ps(){
-# process substitution
-    declare -a input
-    while read -a input
-    do
-        echo "${input[0]} ${input[8]}"
-    done < <(ls -ll)
-}
-
-custom_ifs_read(){
-    declare -a input_array
-    while IFS=";" read -a input_array -r
-        do
-            for element in ${input_array[@]}
-                do
-                    echo -n "$element.backup "
-                done
-            echo ""
-        done < "file.csv"
-}
-
-infinite_read(){
-    while read -d "?" -ep "Input:" input
-        do
-            echo "$input"
-        done
-}
-
-custom_ifs(){
-    declare -a input_array
-    IFS=$1 # whitespace 
-    read -a input_array -p "Enter something with delimiter <$1>:"
-    for input in ${input_array[@]}
-        do
-            echo "[$input]"
-        done
-}
-
-
-
-#default_read
-#array_read
-#special_delim
-file_read
-#prompt_read
-#default_input_read
-#advanced_pipeing
-#custom_ifs_read
-#infinite_read
-# custom_ifs " "
-# custom_ifs ";"
-#custom_ifs_no_array
-
-
-
-
-
-
-
+}
\ No newline at end of file
diff --git a/linux-bash/read/src/main/dummy_file b/linux-bash/read/src/main/dummy_file
deleted file mode 100644
index 4c581fc816..0000000000
--- a/linux-bash/read/src/main/dummy_file
+++ /dev/null
@@ -1,7 +0,0 @@
-Lorem Ipsum is simply dummy text of the printing and typesetting industry. 
-Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, 
-when an unknown printer took a galley of type and scrambled it to make a type specimen book. 
-It has survived not only five centuries, but also the leap into electronic typesetting, 
-remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset 
-sheets containing Lorem Ipsum passages, and more recently with desktop publishing software 
-like Aldus PageMaker including versions of Lorem Ipsum.
\ No newline at end of file

From 9818939e402d9a2c97befa1a1deb32f1b94cbba1 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Mon, 16 Dec 2019 21:23:30 +0200
Subject: [PATCH 6/8] BAEL-3370: Fixed formatting

---
 linux-bash/read/src/main/bash/read_inputs.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux-bash/read/src/main/bash/read_inputs.sh b/linux-bash/read/src/main/bash/read_inputs.sh
index c39f77f217..6e35e5de96 100755
--- a/linux-bash/read/src/main/bash/read_inputs.sh
+++ b/linux-bash/read/src/main/bash/read_inputs.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # section 2.1
-default_read() {
+default_read(){
     read input1 input2 input3
     echo "[$input1] [$input2] [$input3]"
 }
@@ -20,7 +20,7 @@ prompt_read_password(){
     echo -e "\ninput password [$input]"
 }
 
-array_read() {
+array_read(){
     declare -a input_array
     text="baeldung is a cool tech site"
     read -e -i "$text" -a input_array 

From 18b9e796efde0009a917f4805787d20dee852689 Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Tue, 17 Dec 2019 23:30:12 +0200
Subject: [PATCH 7/8] BAEL-3370: First draft of menu

---
 linux-bash/read/src/main/bash/read_inputs.sh | 24 +++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/linux-bash/read/src/main/bash/read_inputs.sh b/linux-bash/read/src/main/bash/read_inputs.sh
index 6e35e5de96..199b9b6a4f 100755
--- a/linux-bash/read/src/main/bash/read_inputs.sh
+++ b/linux-bash/read/src/main/bash/read_inputs.sh
@@ -58,6 +58,7 @@ timeout_input_read(){
     read -p "$prompt" -s -r -t 5 input
         if [ -z "$input" ]; then
             echo -e "\ntimeout occured!"
+            echo "empty -?> [$input]"
         else
             echo -e "\ninput word [$input]"
         fi
@@ -68,4 +69,25 @@ exactly_n_read(){
     read -p "$prompt" -N 11 -t 5 input1 input2 
     echo -e "\ninput word1 [$input1]"
     echo "input word2 [$input2]"
-}
\ No newline at end of file
+}
+
+
+echo "Read command samples"
+options=("default_read" "custom_ifs_no_array" "prompt_read_password" "quit")
+select option in "${options[@]}"
+do
+  case $option in
+        "default_read")
+            echo "Default read"
+            default_read
+            ;;
+        "custom_ifs_no_array")  
+            echo "Custom IFS no array"
+            custom_ifs_no_array
+            ;;
+        "quit")
+            break
+            ;;
+        *) echo "Invalid option";;
+  esac
+done
\ No newline at end of file

From f60b9019b8c1ab6cc887b6ed6699280a8a3f13dd Mon Sep 17 00:00:00 2001
From: Sorin Zamfir <sorin.zamfir@outlook.com>
Date: Wed, 18 Dec 2019 20:50:17 +0200
Subject: [PATCH 8/8] BAEL-3370: Included easy menu for samples

---
 linux-bash/read/src/main/bash/read_inputs.sh | 43 ++++++++++++++++----
 1 file changed, 36 insertions(+), 7 deletions(-)

diff --git a/linux-bash/read/src/main/bash/read_inputs.sh b/linux-bash/read/src/main/bash/read_inputs.sh
index 199b9b6a4f..30eb598ac3 100755
--- a/linux-bash/read/src/main/bash/read_inputs.sh
+++ b/linux-bash/read/src/main/bash/read_inputs.sh
@@ -8,9 +8,12 @@ default_read(){
 
 # section 2.2
 custom_ifs_no_array(){
+    OLDIFS=$IFS
     IFS=";"
     read input1 input2 input3
     echo "[$input1] [$input2] [$input3]"
+    # restore default IFS after we're finished so current shell behaves like before
+    IFS=$OLDIFS
 }
 
 # Section 2.3
@@ -44,7 +47,7 @@ file_read(){
 
 # section 3.2
 command_pipe(){
-    ls -ll | { declare -a input
+    ls -ll / | { declare -a input
                read
                while read -a input; 
                do
@@ -58,7 +61,6 @@ timeout_input_read(){
     read -p "$prompt" -s -r -t 5 input
         if [ -z "$input" ]; then
             echo -e "\ntimeout occured!"
-            echo "empty -?> [$input]"
         else
             echo -e "\ninput word [$input]"
         fi
@@ -71,20 +73,47 @@ exactly_n_read(){
     echo "input word2 [$input2]"
 }
 
-
-echo "Read command samples"
-options=("default_read" "custom_ifs_no_array" "prompt_read_password" "quit")
+# main menu entry point
+echo "****Read command samples menu*****"
+PS3="Your choice (1,2,3 etc.):"
+options=("default_read" "custom_ifs_no_array" "prompt_read_password" \
+         "array_read" "file_read" "command_pipe" "timeout_input_read" \
+         "exactly_n_read" "quit")
 select option in "${options[@]}"
 do
   case $option in
         "default_read")
-            echo "Default read"
+            echo "Enter something separated by spaces"
             default_read
             ;;
         "custom_ifs_no_array")  
-            echo "Custom IFS no array"
+            echo "Enter something separated by ;"
             custom_ifs_no_array
             ;;
+        "prompt_read_password")
+            echo "Enter an invisible password after the prompt"
+            prompt_read_password
+            ;;
+        "array_read")
+            echo "Enter something else or just return"
+            array_read
+            ;;
+        "file_read")
+            echo "Reading from one liner csv file"
+            file_read
+            ;;
+        "command_pipe")
+            echo "Listing files and access rights from /"
+            command_pipe
+            ;;
+        "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
             ;;