echoing control-characters from the command-line

echoing control-characters from the command-line

Post by Peter Couvar » Thu, 23 Jul 1992 08:48:31

        Is there any way (from the command-line) to produce the same output
as the following C program? (maybe with 'echo'?) :

main { printf("\027"); }

Thanks in advance for any help...



1. diff among echo a>f; command<f; echo $a|command; command << $a; EOF

What is the difference among:

echo $passwd > file
command < file

echo $passwd | command

command << EOF

To me they are all equivalent ( I am talking about functionality, not
UUOC stuff here ). But the DBA claims that only 1) works for the oracle
financial application applmgr, and it beats me. 1) is recommended by oracle
on the manual but I prefer 2 and 3. Please shed some light on
the issue. Thanks.
Michael Wang

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