Simple installation script

README.md

@@ -30,3 +30,10 @@ git clone https://winklerfamilie.eu/git/efelon/shell_sequencer.git /opt/sequence
 ln -s /opt/sequencer/sequencer/sequencer.sh /usr/local/bin
 ln -s /opt/sequencer/seqs /opt
 ```
+or
+
+use the simple bash installation script in the repository:
+
+```
+curl -L https://winklerfamilie.eu/git/efelon/shell_sequencer/raw/branch/master/install.sh | bash
+```

install.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+SEQLOC="/opt"
+SEQHOME="${SEQLOC}/sequencer"
+SEQGITURL="https://winklerfamilie.eu/git/efelon/shell_sequencer.git"
+
+if [ -d "$SEQHOME" ]; then
+  echo " [E] Sequencer seems to be installed already at:"
+  echo "     $SEQHOME"
+  exit 1
+fi
+if [ ! -w "$SEQLOC" ]; then
+  echo " [E] Your user has no permission to write to $SEQLOC"
+  exit 2
+fi
+
+which git >>/dev/null 2>&1
+if [ $? != 0 ]; then
+  echo " [W] Git not found and will be installed"
+  apt update 
+  if [ $? != 0 ]; then
+    echo " [W] Cannot update apt repositories"
+  fi
+  apt install git -y
+  if [ $? != 0 ]; then
+    echo " [E] Cannot install git via apt"
+    exit 4
+  fi
+fi
+
+git clone $SEQGITURL "$SEQHOME"
+if [ $? != 0 ]; then
+  echo " [E] Error cloning git repository:"
+  echo "     $SEQGITURL"
+  exit 6
+fi
+
+ln -s "${SEQHOME}/sequencer/sequencer.sh" "/usr/local/bin"
+ln -s "${SEQHOME}/seqs" "/opt"
+
+echo " [I] Successfully installed shell sequencer"
+echo "     Don't forget to set git user variables:"
+echo "     git config user.name=\"Your Name\""
+echo "     git config user.email=\"Your.Name@example.com\""