From 3d0d21d6f1ea2c68b7261ab1d4e1c33b3ad2da36 Mon Sep 17 00:00:00 2001
From: ub1x <ub1x@gmx.net>
Date: Wed, 3 Nov 2021 22:15:09 +0100
Subject: [PATCH] Updated version of dfc.sh which are able to change the
 settings via options

---
 dfc.sh | 115 ++++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 90 insertions(+), 25 deletions(-)

diff --git a/dfc.sh b/dfc.sh
index 329ea01..6e85b77 100755
--- a/dfc.sh
+++ b/dfc.sh
@@ -1,37 +1,102 @@
 #!/bin/bash
+# df (= DiskFree) with some options and colored if Alert levels are exceeded
 #
-# df with some options and colored if Alert levels are exceeded
 # (c) GPL by Ulf Bartolomäus
-VERSION="Version 0.1.1  from 13.02.2021"
+VERSION="$( basename $0 ) Version 0.1.2 from 03.11.2021"
+#
+# Input:        -v		: Version
+#				-y YY	: YY = alert level (yellow) in % (default = 80%)
+#				-r RR	: RR = critical alert level (red) in % (default = 90%)
+# Output:       disk free information colored about mounted filesystems
+# Returnvalue:	0
+#
+# Changes:
+# 0.1.2
+#	Some format improfements and adding from options
 # 0.1.1
 #	Initial based on whatch_new
 
-MyDfC='df -hTx tmpfs -x devtmpfs'							## df - command - w/o *tenpfs 
-MyDfCnN='df -hTx tmpfs -x devtmpfs -x fuse -x nfs4'					## df - command - w/o *tenpfs, fuse and nfs4
-#MyDfC="${MyDfCnN}"									## uncomment to overwrite wit additional fuse and nfs4 filesystems
-MyDfAlert1=80                    							## alert level of df
-MyDfAlert2=90										## critical alert level of df
+## Definitions
+#MyDfC='df -hT'										## df command: -h: human readeable, -T: show filesystem type
+MyDfC='df -hTx tmpfs -x devtmpfs'					## df -hT command: excluding *tenpfs 
+#MyDfC='df -hTx tmpfs -x devtmpfs -x fuse -x nfs4'	## df -hT command: excluding *tenpfs, fusa and nfs4 filesystems
 
-## Escape sequences for color
-esc=$(echo -en "\033")									## define esc sequence
-dick="${esc}[1m"									## define bold sequence
-rot="${esc}[1;31m"									## define red sequence
-gruen="${esc}[1;32m"									## define green sequence
-gelb="${esc}[1;33m"									## define yellow sequence
-blau="${esc}[1;34m"									## define blue sequence
-lila="${esc}[1;35m"									## define purple sequence
-norm=$(echo -en "${esc}[m\017")								## define default sequence
+MyDfAlert1=80										## "yellow" for alert level for out of space
+MyDfAlert2=90										## "red" for critical alert for out of space
 
-## DiskFree (only if not the same device => uniq check first 40 characters
-${MyDfC} | uniq -w40 | while read MyOutput; do						## Execute df and filter doublicates - for each row stored in MyOutput
+## Escape secences for color
+esc=$(echo -en "\033")								## define esc secence
+dick="${esc}[1m"									## define bold secence
+rot="${esc}[1;31m"									## define red secence
+gruen="${esc}[1;32m"								## define green secence
+gelb="${esc}[1;33m"									## define yelow secence
+blau="${esc}[1;34m"									## define blue secence
+lila="${esc}[1;35m"									## define purple secence
+norm=$(echo -en "${esc}[m\017")						## define default secence
+
+
+## Shows the Version iformation
+do_version () {
+    echo "* ${VERSION} *"
+}
+
+## Show help
+do_usage () {
+	echo "${dick}"
+	echo "Usage: $( basename $0 ) [-Vvh] [-y AlertLevel] [-r CriticalAlertLevel] [dfOptions]"
+	echo "This program  provides the df (man df) information color by filling grade!"
+	echo "${dick}${blau}"
+	echo "This program is GPL (https://git.sp-codes.de/ub1x/my-scripts/src/branch/main/LICENSE)."
+	echo "${norm}${dick}"
+	echo "-V         Version info - only"
+	echo "-v         Version info - aditional"
+	echo "-h         shows this help"
+	echo "-y N       percent value of alert level (marked in yellow) (default 80%)"
+	echo "-r N       percent value of critical alert level (marked in red) (default 90%)"
+#	echo "dfOptions  additional comand options"
+	echo "${norm}"
+	echo
+}
+
+## Read options
+while getopts Vvhy:r: o; do
+	case $o in
+	V)	do_version
+		exit 0
+		;;
+	v)	do_version
+		;;
+	h)	do_usage
+		exit 0
+		;;
+	y)	if [ -n "$(( ${OPTARG} ))" ] ; then
+		  MyDfAlert1=$(( ${OPTARG} ));
+#		  echo "gelb von 80% auf ${MyDfAlert1}% geändert"
+		fi
+		;;
+	r)	if [ -n "$(( ${OPTARG} ))" ] ; then
+		  MyDfAlert2=$(( ${OPTARG} ));
+#		  echo "rot von 90% auf ${MyDfAlert2}% geändert"
+		fi
+		;;
+	*)	do_usage
+		exit 10
+		;;
+	esac
+done
+#shift $(expr $OPTIND - 1)
+#MyDfC="${MyDfC} $*"
+
+## DiskFree (only if not the same device => unique check first 40 characters)
+${MyDfC} | uniq -w40 | while read MyOutput; do								## Execute df and filter doublicates - for each row stored in MyOutput
 	MyDfUsage=$(echo ${MyOutput} | awk '{ print $6}' | cut -d'%' -f1 )		## Search Usage in %
     if [[ ! $( echo "${MyDfUsage}" | grep [[:digit:]] ) ]] ; then			## If first row
-        echo -e ${dick}"${MyOutput}"${norm}						## Echo in bold
-    elif [ $(( ${MyDfUsage} )) -ge ${MyDfAlert2} ]; then				## If critical level excited
-        echo -e ${rot}"${MyOutput}"${norm}						## Echo in red
-    elif [ $(( ${MyDfUsage} )) -ge ${MyDfAlert1} ]; then				## If alert level excited 
-        echo -e ${gelb}"${MyOutput}"${norm}						## Echo in yellow
-    else										## default
-        echo -e ${gruen}"${MyOutput}"${norm}						## Echo in green
+        echo -e ${dick}"${MyOutput}"${norm}									## Echo in bold
+    elif [ $(( ${MyDfUsage} )) -ge ${MyDfAlert2} ]; then					## If critical level excided
+        echo -e ${rot}"${MyOutput}"${norm}									## Echo in red
+    elif [ $(( ${MyDfUsage} )) -ge ${MyDfAlert1} ]; then					## If alert level excided 
+        echo -e ${gelb}"${MyOutput}"${norm}									## Echo in yelow
+    else																	## default
+        echo -e ${gruen}"${MyOutput}"${norm}								## Echo in green
     fi
 done