tmux, bash, mgmt fiddling

private_dot_config/private_mgmt/fns/install_bin.bash

@@ -0,0 +1,17 @@
+# shellcheck shell=bash
+install_bin() {
+    name="$1"
+    file="$2"
+    source="$3"
+    flag="$4"
+
+    if file "$file" | grep -Eqv 'ELF|executable'; then
+        diag "$(red "error: file from $source not an executable")"
+        exit 1
+    fi
+
+    if [ "$flag" != "--no-backup" ] && [ -f "/usr/local/bin/$name" ]; then
+        sudo cp "/usr/local/bin/$name" "/usr/local/bin/$name.old"
+    fi
+    sudo install -m 755 "$file" "/usr/local/bin/$name"
+}