Bash snippets.

bash.sh

#
# Loops
#

# Loop files with weird names and reading from console stdin.
while IFS= read -r -d $'\0' FILE; do
	read -p "Press Enter to continue to \"$FILE\"" </dev/tty
done < <(find . -printf "%P\0" | grep --null-data "filter")

# Loop files with less surprises
#   Better ones https://stackoverflow.com/questions/1521462/looping-through-the-content-of-a-file-in-bash for best versions
while read -u 10 LINE; do
  echo "$LINE"
done 10< <(cat lines.txt | grep filter)

# Loop through array variables.
array=( item1 item2 item3 )
for item in "${array[@]}"; do
	echo $item
done

# Update old DIA diagram files
while IFS= read -r -d $'\0' SPATH; do
	RPATH="${SPATH%.dia}.png"
	if [ "$SPATH" -nt "$RPATH" ]; then
		dia --export "$RPATH" "$SPATH"
	fi
done < <(find . -name "*.dia" -printf "%P\0")

#
# Utility
#

# Flattens a folder structure with "_"
find -type f -printf '%P\0' | while read -d $'\0' i ; do mv "$i" "${i////_}" ; done