| # Ensure that cat -E produces same output as cat, modulo '$'s, | |
| # even when applied to a file in /proc. | |
| # Copyright (C) 2006-2025 Free Software Foundation, Inc. | |
| # This program is free software: you can redistribute it and/or modify | |
| # it under the terms of the GNU General Public License as published by | |
| # the Free Software Foundation, either version 3 of the License, or | |
| # (at your option) any later version. | |
| # This program is distributed in the hope that it will be useful, | |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| # GNU General Public License for more details. | |
| # You should have received a copy of the GNU General Public License | |
| # along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src | |
| print_ver_ cat | |
| f=/proc/cpuinfo | |
| test -f $f \ | |
| || skip_ "no $f" | |
| # Yes, parts of /proc/cpuinfo might change between cat runs. | |
| # If that happens, consider choosing a file that's less likely to change, | |
| # or just filter out the changing lines. The sed filter should help | |
| # to avoid any spurious numeric differences. | |
| cat -E $f | sed 's/[0-9][0-9]*/D/g' | tr -d '$' > out || fail=1 | |
| cat $f | sed 's/[0-9][0-9]*/D/g' | tr -d '$' > exp || fail=1 | |
| compare exp out || fail=1 | |
| Exit $fail | |