Make ask_pn() more friendly

workflow/qhtcp-workflow

@@ -226,13 +226,30 @@ err() { echo "Error: $*" >&2; }
 ask_pn() {
   unset PROJECT
   declare -g PROJECT
-  word1=$(shuf -n 1 /usr/share/dict/words)
+  cat <<-EOF
-  word2=$(shuf -n 1 /usr/share/dict/words)
+		Enter a new or existing project name, ex. ${PROJECT_PREFIX}_$(random_words 3)
-  word3=$(shuf -n 1 /usr/share/dict/words)
+		If entering a new project, use the suggested prefix: ${PROJECT_PREFIX}_
-  read -r -p "Enter a new or existing project name, ex. ${PROJECT_PREFIX}_${word1}_${word2}_${word3}: " PROJECT
+		You may choose any combination of words/characters following the prefix, but be sensible.
+		Make it descriptive and avoid spaces and special characters.
+	EOF
+  read -r -p "Enter a new or existing project name: " PROJECT
   [[ -z $PROJECT ]]
 }
 debug() { (( DEBUG )) && echo "Debug: $*"; }
+# Not super portable but nice to have
+random_words() {
+  local num=${1:-2}
+  local -a arr
+  for ((i=0;i<num;i++)); do
+    word=$(shuf -n1 /usr/share/dict/words | sed -e 's/-//g' -e 's/_//g')
+    # Sanitize
+    word="${word//-/}"
+    word="${word//_/}"
+    word="${word,,}"
+    arr+=("$word")
+  done
+  printf "%s_" "${arr[@]}" | sed 's/_$//'
+}
 
 
 # @section Modules
@@ -244,7 +261,6 @@ debug() { (( DEBUG )) && echo "Debug: $*"; }
 #   * Dictating the ordering of multiple submodules
 #   * Modules should competently handle pushd and popd for their submodules if they do not reside in the SCANS/PROJECT_DIR
 
-
 module install_dependencies
 # @section Install dependencies
 # @description Installs dependencies for the workflow
@@ -278,9 +294,9 @@ install_dependencies() {
   debug "Running: ${FUNCNAME[0]}" "$@"
 
   # Dependency arrays
-  depends_rpm=(graphviz pandoc pdftk-java gd-devel shdoc nano rsync)
+  depends_rpm=(graphviz pandoc pdftk-java gd-devel shdoc nano rsync coreutils)
-  depends_deb=(graphviz pandoc pdftk-java libgd-dev shdoc nano rsync)
+  depends_deb=(graphviz pandoc pdftk-java libgd-dev shdoc nano rsync coreutils)
-  depends_brew=(graphiz pandoc gd pdftk-java shdoc nano rsync)
+  depends_brew=(graphiz pandoc gd pdftk-java shdoc nano rsync coreutils)
   depends_perl=(File::Map ExtUtils::PkgConfig GD GO::TermFinder)
   depends_r=(BiocManager ontologyIndex ggrepel tidyverse sos openxlsx ggplot2 
     plyr extrafont gridExtra gplots stringr plotly ggthemes pandoc rmarkdown