First commit - second part

Former-commit-id: 202296404e6a70f8ae96db99faffb456104c57e9
Former-commit-id: 118417735d2055683607df9809c9b721cc1b1bab

scripts/check_port

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+#!/bin/csh
+#
+# check if port is installed
+#
+set ORG_HOME = `dirname $0`/..
+
+set PORTNAME = `$ORG_HOME/config/guess_port`
+
+if (-f $ORG_HOME/ports/$PORTNAME/bin/exonerate) then
+  echo "+ port $PORTNAME is correctly installed"
+  exit 0
+endif
+
+echo "! port $PORTNAME not installed"
+echo "! Please read README.txt for proper installation"
+
+exit 1
+
+
+

scripts/sample.csh

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+#!/bin/csh
+#
+# a sample script to show how to retrieve proper path for port
+#
+
+set ORG_HOME = `dirname $0`/..
+
+set PORTNAME = `$ORG_HOME/config/guess_port`
+
+set path = ($path $ORG_HOME/ports/$PORTNAME/bin)
+
+#
+
+which aragorn
+
+exit 0
+
+
+