1 files changed, 17 insertions, 0 deletions
diff --git a/subr/rtl.subr b/subr/rtl.subr
new file mode 100644
index 00000000..18ddb8d6
--- /dev/null
+++ b/subr/rtl.subr
@@ -0,0 +1,17 @@
+#
+# set +o errexit -o noglob is assumed.
+#
+
+EXP_RTL_IFS="${IFS}";
+
+rtl_basename() { echo "${1##*/}"; };
+rtl_date() { command date "+${1:-${DEFAULT_TIMESTAMP_FMT}}"; };
+rtl_dirname() { echo "${1%/*}"; };
+rtl_pop_IFS() { IFS="${EXP_RTL_IFS}"; };
+rtl_push_IFS() { EXP_RTL_IFS="${IFS}"; IFS="${1}"; };
+rtl_set_var_unsafe() { [ -n "${2}" ] && eval ${1}=\"${2}\" || return 0; };
+rtl_test_cmd() { command -v "${1}" >/dev/null; };
+rtl_uniq() { echo "${@}" | sed 's/ /\n/g' | awk '!x[$0]++' | paste -s -d" "; };
+rtl_unset_vars() { while [ ${#} -gt 0 ]; do unset "${1}"; shift; done; };
+
+# vim:filetype=sh