initial commit

bash/.functions

@@ -0,0 +1,61 @@
+# Bash Functions
+
+mkcd()
+{
+    mkdir -p -- "$1" && cd -P -- "$1"
+}
+
+# determine size of a file or total size of a directory
+function fs() {
+    if du -b /dev/null > /dev/null 2>&1; then
+            local arg=-sbh;
+    else
+            local arg=-sh;
+    fi
+    if [[ -n "$@" ]]; then
+            du $arg -- "$@";
+    else
+            du $arg .[^.]* ./*;
+    fi;
+}
+
+
+# use Git’s colored diff when available
+hash git &>/dev/null;
+if [ $? -eq 0 ]; then
+    function diff() {
+        git diff --no-index --color-words "$@";
+    }
+fi;
+
+## system administration
+
+### service files
+sysedit() {
+    local svc="$1"
+    sudo systemctl edit --full "$svc"
+
+    read -p "Reload + restart $svc? [y/N]: " ans
+    if [[ "$ans" == "y" ]]; then
+        sudo systemctl daemon-reload
+        sudo systemctl restart "$svc"
+    fi
+}
+sysadd() {
+    local svc="$1"
+    sudo systemctl edit "$svc"
+
+    read -p "Reload + restart $svc? [y/N]: " ans
+    if [[ "$ans" == "y" ]]; then
+        sudo systemctl daemon-reload
+        sudo systemctl restart "$svc"
+    fi
+}
+
+## bash script helpers
+is_true() {
+    case "${1,,}" in
+        1|true|yes|y|on) return 0 ;;
+	*) return 1 ;;
+    esac
+}