Debian活用/デバッグ

/etc/systemd/system.conf

LogLevel=info
LogTarget=kmsg

GDB, gdbserver

bash set -euxo pipefail
exec 2> >(tee -a /tmp/xxx.log) 1>&2

script
expect
screen
netstat
nmap
diff -ruNp
ccache
lrzsz
minicom runscript
rsyslog