[ILUG] Why does each filename from ls have a newline?

[Dermot McGahon]

This behaviour is great because you can pipe output from ls to other
commands and it works like you would expect, for example:

ls -R | egrep -v ".*:" | egrep -v "^$" | mawk '{ printf "mv %s %s\n",
$0, tolower($0) }'

but I don't understand why the output is presented column across using
bash and an xterm, when there are embedded newlines? How does this
work?

Also there is a -1 option to ls so that it gives one filename per line
but specifying the -1 option or leaving it out won't make any
difference to how the above pipeline will work. So, do any of you use
the -1 option and what do you use it for.

And finally, are there are better ways to convert filenames from
uppercase to lowercase? The other that I know of is find -exec tr. Are
there more?

Dermot.
--

dmcgahon at dnrc:~/xmlrpc$ ls | tr "\n" "|"
ChangeLog|agesort.php|base64test.php|bettydemo.php|booltest.php|client.php|demo1.txt|demo2.txt|demo3.txt|doc|httptest.php|introspect.php|introspect_demo.php|mail.php|server.php|stringtest.php|test.pl|test.py|vardemo.php|workspace.testPhpServer.fttb|xmlrpc.inc|xmlrpcs.inc|zopetest.php|dmcgahon at dnrc:~/xmlrpc$

dmcgahon at dnrc:~/xmlrpc$ ls -R | tr "\n" "|"
.:|ChangeLog|agesort.php|base64test.php|bettydemo.php|booltest.php|client.php|demo1.txt|demo2.txt|demo3.txt|doc|httptest.php|introspect.php|introspect_demo.php|mail.php|server.php|stringtest.php|test.pl|test.py|vardemo.php|workspace.testPhpServer.fttb|xmlrpc.inc|xmlrpcs.inc|zopetest.php||./doc:|Makefile|apidocs.html|arrayuse.html|bugs.html|custom.dsl|debugging.html|examples.html|helpers.html|index.html|introduction.html|manifest.html|reserved.html|support.html|sysmethhelp.html|sysmethodsig.html|xmlrpc-server.html|xmlrpc_php.sgml|xmlrpcmsg.html|xmlrpcresp.html|xmlrpcval.html|dmcgahon at dnrc:~/xmlrpc$