Initial commit with core behavior

functions.sh

@@ -0,0 +1,109 @@
+#!/bin/bash
+sumList() { SIZE=$(ls -FaGl "${@}" | awk '{ total += $4 }; END { print total }'); echo $(($SIZE/1024)); }
+
+# Simple calculator
+calc() {
+	local result=""
+	result="$(printf "scale=10;%s\\n" "$*" | bc --mathlib | tr -d '\\\n')"
+	#						└─ default (when `--mathlib` is used) is 20
+
+	if [[ "$result" == *.* ]]; then
+		# improve the output for decimal numbers
+		# add "0" for cases like ".5"
+		# add "0" for cases like "-.5"
+		# remove trailing zeros
+		printf "%s" "$result" |
+			sed -e 's/^\./0./'  \
+			-e 's/^-\./-0./' \
+			-e 's/0*$//;s/\.$//'
+	else
+		printf "%s" "$result"
+	fi
+	printf "\\n"
+}
+
+# Create a data URL from a file
+dataurl() {
+	local mimeType
+	mimeType=$(file -b --mime-type "$1")
+	if [[ $mimeType == text/* ]]; then
+		mimeType="${mimeType};charset=utf-8"
+	fi
+	echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')"
+}
+
+# Run `dig` and display the most useful info
+digga() {
+	dig +nocmd "$1" any +multiline +noall +answer
+}
+
+# UTF-8-encode a string of Unicode symbols
+escape() {
+	local args
+	mapfile -t args < <(printf "%s" "$*" | xxd -p -c1 -u)
+	printf "\\\\x%s" "${args[@]}"
+	# print a newline unless we’re piping the output to another program
+	if [ -t 1 ]; then
+		echo ""; # newline
+	fi
+}
+
+# Decode \x{ABCD}-style Unicode escape sequences
+unidecode() {
+	perl -e "binmode(STDOUT, ':utf8'); print \"$*\""
+	# print a newline unless we’re piping the output to another program
+	if [ -t 1 ]; then
+		echo ""; # newline
+	fi
+}
+
+# Get a character’s Unicode code point
+codepoint() {
+	perl -e "use utf8; print sprintf('U+%04X', ord(\"$*\"))"
+	# print a newline unless we’re piping the output to another program
+	if [ -t 1 ]; then
+		echo ""; # newline
+	fi
+}
+
+# Get colors in manual pages
+man() {
+	env \
+		LESS_TERMCAP_mb="$(printf '\e[1;31m')" \
+		LESS_TERMCAP_md="$(printf '\e[1;31m')" \
+		LESS_TERMCAP_me="$(printf '\e[0m')" \
+		LESS_TERMCAP_se="$(printf '\e[0m')" \
+		LESS_TERMCAP_so="$(printf '\e[1;44;33m')" \
+		LESS_TERMCAP_ue="$(printf '\e[0m')" \
+		LESS_TERMCAP_us="$(printf '\e[1;32m')" \
+		man "$@"
+}
+
+# a tool to test if a given date has passed
+# give it any standard date string (next Fri, 4:19pm, etc.) and it returns
+# a boolan if we are less than that date. Use to loop functions.
+dateTest() {
+	[[ $(date +"%s" --date="$1") -gt $(date +"%s") ]]
+}
+
+# Test if a PID is running
+pidTest() {
+	ps -p $1 &>/dev/null
+	[[ $? -eq 0 ]];
+}
+
+# Call 'tree' but pipe it through LS with color preservation
+treep() { # short for tree pager
+	if [[ $# -gt 0 ]]; then
+		tree -C $* | less
+	else
+		tree -C | less
+	fi
+}
+
+ts() {
+	( # so we don't get stuck in that folder
+	cd "$HOME/Dropbox/Grad School/Writing/0000-dissertation"
+	grep -R "$1" *
+	)
+}