Below you will find a number of tools written in shell or perl. I found they are useful for various tasks (development, web update).

I'm using these tools for development:
apply-cmd-on-file This simple helper script applies a command such as sed, awk on a file.
apply-cmd-on-tree This simple helper script applies a command such as sed, awk on files in directories recursively.
build-chg-ident Simple awk script to generate a sed script that can be used with apply-cmd-on-file and apply-cmd-on-tree to replace a list of identifier by another list (ie, rename a function in *all* sources).
unix2dos Perl script to translate Unix files to DOS files (ie, translate \n into \r\n.
checkall.sh Simple shell script that together with mktest.sh allows to build and run the testsuite on most of the targets/configurations supported by GNU Binutils.
mktest.sh Simple shell script that together with checkall.sh allows to build and run the testsuite on most of the targets/configurations supported by GNU Binutils.
fmt-bench.pl Format 68HC11 benchmark results to integrate the results in a web page.
incorporate-bench.pl Something related to 68hc11 benchmark
merge-bench.pl Allows comparison of two 68hc11 benchmark results.
symlink-tree Similar to the symlink-tree program that exists in gdb, gcc but written in perl (10 to 20 times faster).
patchextract.pl Looks the content of a patch file (list of files); split the patch file into several sub-patches.

The following tools are more related to web page generation (public and personal).
mkweb mkweb is a perl script that generates web pages from a set of template files and a body file. The same template is used, thus providing an homogeneous and easy to update look for the pages.
eagle-part-to-html.pl Convert an Eagle 3.55 part list into HTML.
gen-photo-index.pl Generate a HTML page for a directory containing several photos. I'm using this after having scanned my photos. It generates 1/8 pictures for each scanned photo and makes an index to show them all in netscape.
gen-photo-top-index.pl Generate the top HTML file for several photo indexes.
photo-command.pl Extract from the HTML page generated by gen-photo-index.pl the command that was used to create the page.
sct-1.0.tar.gz Version 1.0 of the above tools.