postinst is in sql-ledger 3.0.5-1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | #!/bin/sh
set -e
if ! test -L /usr/lib/sql-ledger; then
# Work around dpkg bug (can't replace dir by symlink itself)
(rmdir /usr/lib/sql-ledger && ln -sf /usr/share/sql-ledger /usr/lib/sql-ledger) || \
echo "WARNING: Unable to replace /usr/lib/sql-ledger by a symlink"
fi
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