On Tue, 5 Dec 2006, Simon Riggs wrote:

which gives

        prompt> echo "\x \\ select * from foo;" | psql
        Expanded display is on.
        invalid command \

i.e. doesn't work on bash. With bash the command should be:

        echo -e "\x \n select * from foo;" | psql

which gives

        prompt> echo -e "\x \n select * from foo;" | psql
        Expanded display is on.
        ERROR:  relation "foo" does not exist

Does this mean there are multiple forms of the echo command, or is this
example just wrong?

I believe that /bin/echo and the bash built-in used to be slightly different, although reviewing both man pages on my FC5 system seem to indicate that they have the same command-line arguments.

It's also possible that I'm thinking back to my Solaris (2.5.1) days when the built-in tcsh echo was in fact different than /bin/echo. That's why all my scripts seem to call the binary and not the built-in.

Another possibility is that the original author had the options set in his xpg_echo environment variable and forgot about it...or his distro was setting it in a profile.d file.

--
Jeff Frost, Owner       <[EMAIL PROTECTED]>
Frost Consulting, LLC   http://www.frostconsultingllc.com/
Phone: 650-780-7908     FAX: 650-649-1954

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