2.01

README.md

@@ -50,6 +50,7 @@ Run _contig_info_ without option to read the following documentation:
    -r          residue content statistics for each contig sequence instead of 
                global statistics
    -t          tab-delimited output
+   -h          prints this help and exits
 ```
 
 ## Examples

contig_info.sh

@@ -32,7 +32,11 @@
 # = VERSIONS =                                                                                               #
 # ============                                                                                               #
 #                                                                                                            #
-  VERSION=2.0.210315ac                                                                                       #
+  VERSION=2.01.210324ac                                                                                      #
+# + modified temp file creation using TMPDIR variable                                                        #
+# + adding option -h                                                                                         #
+#                                                                                                            #
+# VERSION=2.0.210315ac                                                                                       #
 # + adding option -r                                                                                         #
 # + adding trap when interrupting script                                                                     #
 #                                                                                                            #
@@ -70,7 +74,7 @@
 #  ================                                                                                         #
 #                                                                                                           #
 #                                                                                                           #
-if [ "$1" = "-?" ] || [ $# -lt 1 ]
+if [ "$1" == "-h" ] || [ $# -lt 1 ]
 then
   echo -e "\n\033[1m contig_info v$VERSION           $COPYRIGHT\033[0m";
   cat <<EOF
@@ -86,25 +90,14 @@ then
    -r          residue content statistics for each contig sequence instead of 
                global statistics
    -t          tab-delimited output
+   -h          prints this help and exits
 
 EOF
-  exit ;
+  [ "$1" == "-h" ] && exit 0 || exit 1 ;
 fi
 #                                                                                                           #
 #############################################################################################################
 
-#############################################################################################################
-#                                                                                                           #
-#  ================                                                                                         #
-#  = CONSTANTS    =                                                                                         #
-#  ================                                                                                         #
-#                                                                                                           #
-# = temp directory =======================================================================================  #
-#                                                                                                           #
-  TEMP_DIR=${TMPDIR:-/tmp};
-#                                                                                                           #
-#############################################################################################################
-
 #############################################################################################################
 #                                                                                                           #
 #  ================                                                                                         #
@@ -112,11 +105,10 @@ fi
 #  ================                                                                                         #
 #                                                                                                           #
 # = randomfile() =========================================================================================  #
-#   returns a random file name within /tmp/                                                                 #
+#   creates a random file within $TEMP_DIR and returns its name                                             #
 #                                                                                                           #
 randomfile() {
-  rdmf=$TEMP_DIR/$RANDOM; while [ -e $rdmf ]; do rdmf=$TEMP_DIR/$RANDOM ; done
-  echo $rdmf ;
+  echo $(mktemp -t -p ${TMPDIR:-/tmp}) ;
 }
 #                                                                                                           #
 #############################################################################################################