| Server IP : / Your IP : 10.244.4.16 [ Web Server : nginx/1.25.3 System : Linux escuela-portal-app-54f56585bc-kst6g 5.15.0-1084-azure #93-Ubuntu SMP Sat Mar 15 14:12:29 UTC 2025 x86_64 User : root ( 0) PHP Version : 8.2.13 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals, Domains : 0 Domains MySQL : OFF | cURL : ON | WGET : OFF | Perl : ON | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /sbin/ |
Upload File : |
#!/bin/sh -e
if test $# -eq 0
then
echo "usage: $0 shellname [shellname ...]" 1>&2
exit 1
fi
file="$DPKG_ROOT/etc/shells"
# I want this to be GUARANTEED to be on the same filesystem as $file
tmpfile="${file}.tmp"
otmpfile="${file}.tmp2"
set -o noclobber
cleanup() {
rm -f "$tmpfile" "$otmpfile"
}
trap cleanup EXIT
if ! cat "$file" > "$tmpfile"
then
cat 1>&2 <<EOF
Either another instance of $0 is running, or it was previously interrupted.
Please examine ${tmpfile} to see if it should be moved onto ${file}.
EOF
exit 1
fi
# this is supposed to be reliable, not pretty
for i
do
REALDIR="$(dirname "$(realpath -m "$i")")/$(basename "$i")"
for j in "$i" "$REALDIR"
do
grep -v "^${j}$" "$tmpfile" > "$otmpfile" || true
mv "$otmpfile" "$tmpfile"
done
done
chmod --reference="${file}" "${tmpfile}" || chmod $(stat -c %a "${file}") "${tmpfile}"
chown --reference="${file}" "${tmpfile}" || chown $(stat -c %U "${file}") "${tmpfile}"
mv -Z "${tmpfile}" "${file}" || mv "${tmpfile}" "${file}"
trap "" EXIT
exit 0