Public bug reported:
I have found this bug while writing autopkgtests for the package. By
default, `shtool echo` should not expand escape sequences.
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Steps to reproduce
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1. apt install shtool on Ubuntu Stonking
2. Run the following command:
ubuntu@s:~$ shtool echo '\1' | cat -v
^A
3. Observe the output with the unprintable character instead of the
literal '\1' line.
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Expected output
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ubuntu@s:~$ shtool echo '\1' | cat -v
\1
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Notes
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This behavior is required by the currently failing first upstream test:
@begin{echo}
test ".`shtool echo foo bar quux`" = ".foo bar quux"
bytes=`shtool echo -n foo | wc -c | awk '{ printf("%s", $1); }'`
test ".$bytes" = .3
bytes=`shtool echo '\1' | wc -c | awk '{ printf("%s", $1); }'`
test ".$bytes" = .3
@end{echo}
The likely root cause is that shtool internally calls echo. However,
echo resolves to the built in command of /bin/sh. Even when shtool tries
to pass -E, the built in version doesn't support it. The best solution
would probably be to make shtool use /usr/bin/echo in some way (e.g., an
alias).
** Affects: shtool (Ubuntu)
Importance: Undecided
Assignee: Csaba Györgyi (gycsaba96)
Status: New
** Changed in: shtool (Ubuntu)
Assignee: (unassigned) => Csaba Györgyi (gycsaba96)
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https://bugs.launchpad.net/bugs/2167073
Title:
`shtool echo` expands escape sequence when it shouldn't
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