/usr/share/doc/dialog/examples/setup-vars is in dialog 1.3-20160828-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | #!/bin/sh
# $Id: setup-vars,v 1.3 2012/06/29 09:52:26 tom Exp $
# vile:shmode
# These symbols are defined to use in the sample shell scripts to make them
# more readable. But they are (intentionally) not exported. If they were
# exported, they would also be visible in the dialog program (a subprocess).
: ${DIALOG=dialog}
: ${DIALOG_OK=0}
: ${DIALOG_CANCEL=1}
: ${DIALOG_HELP=2}
: ${DIALOG_EXTRA=3}
: ${DIALOG_ITEM_HELP=4}
: ${DIALOG_ESC=255}
: ${SIG_NONE=0}
: ${SIG_HUP=1}
: ${SIG_INT=2}
: ${SIG_QUIT=3}
: ${SIG_KILL=9}
: ${SIG_TERM=15}
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