1#!/bin/sh 2# exercise tail -c 3 4# Copyright 2014-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ tail 21 22# Make sure it works on funny files in /proc and /sys. 23for file in /proc/version /sys/kernel/profiling; do 24 if test -r $file; then 25 cp -f $file copy && 26 tail -c -1 copy > exp || framework_failure_ 27 28 tail -c -1 $file > out || fail=1 29 compare exp out || fail=1 30 fi 31done 32 33# Make sure it works for pipes 34printf '123456' | tail -c3 > out || fail=1 35printf '456' > exp || framework_failure_ 36compare exp out || fail=1 37 38Exit $fail 39