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LOL, I meant to say arrays.. Corrected in post.
On Ubuntu ksh is the real ksh, and I think on most modern Linux distributions the default ksh has become ksh93.

Command cut would do the same job
echo $str | cut -d'|' -f1 # try -f2 or -f3

/bin/sh on ubuntu is always bash. Unless you opted to use another POSIX compliant shell on install.

Does ls -l /bin/sh /bin/bash /usr/bin/bash
echo $SHELL
provide any enlightenment?

Yes I believe the Bourne shell (sh) does not support arrays. Are you able to run my complete example? Make sure to include the first line, it tells whatever your login shell is to use the korn shell...

The man page for history says that using a negative number as the first parameter on the command line (e.g. -1000) will print the most recent (1000 in this example) lines. This isn't working with my...

Here is an example:

# alias et='echo test'
# function doit {
> et
> }
# doit
test
# alias et='echo done'
# doit
test
# unalias et
# doit
test

See how changing the "et" alias makes...

The shell reads small chunks of the script which might be a single line from the file or might be a group of lines (a while or for loop is read all at once). As the shell reads these chunks the...