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script.sh - v4 - Structures filled with common functions and loops

Fred authored on01/03/2015 17:30:55
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script.sh
History View file @3a081ff
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@@ -1,10 +1,10 @@
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 #!/bin/bash
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 # Title:
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-# Version:
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-# Author: Frédéric CHEVALIER <f15.chevalier@gmail.com>
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-# Created in:
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+# Version:
4 
+# Author: Frédéric CHEVALIER <fcheval@txbiomedgenetics.org>
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+# Created in: 2014-0
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 # Modified in:
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-# License : GPL v3
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+# Licence : GPL v3
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 # Aims #
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 #======#
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-#
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+#
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 # Versions #
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 #==========#
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-#
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+# v0.0: creation
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 # Dependencies #
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 #==============#
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-#
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+#
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+
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+
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+
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+#===========#
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+# Functions #
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+#===========#
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+
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+# Usage message
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+function usage {
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+    echo -e "
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+    \e[32m ${0##*/} \e[00m -i|--in file -o|--out value -v|--val value -s|--switch -h|--help
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+
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+Options:
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+    -i, --in        input file
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+    -o, --out       name of output file
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+    -v, --val       value
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+    -s, --switch    switch
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+    -h, --help      this message
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+"
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+}
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+
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+
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+
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+# Error message
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+function error {
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+    echo -e "\e[31mError:\e[00m $1"
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+    exit $2
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+}
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+
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+
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+# Warning message
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+function warning {
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+    echo -e "\e[33mWarning:\e[00m $1"
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+}
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+
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 # Declaration of variables #
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 #==========================#
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-
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+# Load variables
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+while [[ $# -gt 0 ]]
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+do
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+    case $1 in
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+        -i|--in     ) input="$2" ; shift 2
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+                        while [[ ! -z "$1" && $(echo "$1"\ | grep -qv "^-" ; echo $?) == 0 ]]
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+                        do
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+                            input=$(echo "$input" "$1")
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+                            shift
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+                        done ;;
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+        -o|--out    ) output="$2" ; shift 2 ;;
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+        -v|--val    ) v="$2" ; shift 2 ;;
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+        -s|--switch ) switch=1 ; shift ;;
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+        -h|--help   ) usage ; exit 0 ;;
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+        *           ) echo "Invalid option: $1"
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+                       usage
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+                       exit 1 ;;
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+    esac
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+done
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+
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+
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+# Check the existence of obligatory options
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+if [[ -z "$input" ]]
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+then
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+    error "The option input is required. Exiting..." 1
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+fi
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+
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+if [[ -z "$output" ]]
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+then
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+    output=
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+fi
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 # Processing #
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 #============#
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-
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 exit 0