Klar med första scriptet till Övning 3, labb 4 samt skapat stubb till script 2

Labb4/laborationsrapport.md

@@ -29,6 +29,7 @@ Istället för `let` kan man instället skriva `Summa=$((4+4)); echo $Summa` och
 ### Övningar ###
 * [Övning 1](https://github.com/jackbenny/scripts_grundkurs/blob/master/Labb4/ovning1.sh)
 * [Övning 2](https://github.com/jackbenny/scripts_grundkurs/blob/master/Labb4/ovning2.sh)
+* [Övning 3, script 1](https://github.com/jackbenny/scripts_grundkurs/blob/master/Labb4/ovning3_script1.sh)
 
 ## Reflektion ##
 En lösning på problemet med att Bash bara räknar med int är att istället använda `bc` (Bench Calculator) istället för `let` i Bash.

Labb4/ovning3_script1.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 3, version1, labb 4
+# Replace words
+
+# Define some variables
+File="$1"
+Old="$2"
+New="$3"
+
+# Sanity checks
+if [ $# -ne 3 ]; then
+	if [ $# -eq 1 ]; then      # If there is just one arg and
+		if [ -r $# ]; then # if the file exists,
+			cat $1     # just print it
+		fi
+		else
+			echo "Usage $0 <filename> <old_word> <new_word>"
+			exit 2 # If it dosen't, exit and print usage
+		fi
+fi
+
+if [ ! -r $File ]; then # If there is no such file
+	echo "We can't read that file"
+	exit 2
+fi
+
+# Main script
+Data=`cat $1` # Put the content of the file in Data
+Alt=${Data/$Old/$New} # Replace the word (kinda lika sed 's/old/new/')
+
+echo "$Alt" # Print the content with the replaced words
+
+exit 0

Labb4/ovning3_script2.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 3, script 2, labb4
+
+
+

Labb4/ovning3_ver1.sh

@@ -1,30 +0,0 @@
-#!/bin/bash
-
-# Jack-Benny Persson
-# LX13
-# Övning 3, version1, labb 4
-# Replace and count words 
-
-# Define some variables
-File="$1"
-Old="$2"
-New="$3"
-
-# Sanity checks
-if [ $# -ne 3 ]; then
-	echo "Usage $0 <filename> <old_word> <new_word>"
-	exit 2
-fi
-
-if [ ! -r $File ]; then
-	echo "We can't read that file"
-	exit 2
-fi
-
-# Main script
-Data=`cat $1`
-Alt=${Data/$Old/$New}
-
-echo "$Alt"
-
-exit 0