Checks whether a regular expression (first parameter) matches a string
(second parameter) using perl.
+: **rundirs()**
+Takes as first parameter a quoted string containing an exectuable command or function with arguments.
+Following that it takes a bunch of directories, which will then be traversed, executing the
+first argument in each one. E.g.: rundirs purge . **/*(/-/)
+
: **salias()**
Creates an alias whith sudo prepended, if $EUID is not zero. Run "salias -h"
for details. See also xunfunction() below.
Shows the content of a zip archive in default pager.
: **simple-extract()**
-Tries to uncompress/unpack given file with the appropriate programs. The
-choice is made along the filename ending.
+Tries to uncompress/unpack given files with the appropriate programs. If an URI
+starting with https, http or ftp is provided simple-extract tries to download
+and then uncompress/unpack the file. The choice is made along the filename
+ending. simple-extract will not delete the original archive (even on .gz,.bz2 or
+.xz) unless you use the '-d' option.
: **sll()**
Prints details of symlinks given as arguments.