$ apt-file find guestmount guestmount: /usr/bin/guestmount guestmount: /usr/share/bash-completion/completions/guestmount guestmount: /usr/share/doc/guestmount/changelog.Debian.gz guestmount: /usr/share/doc/guestmount/copyright guestmount: /usr/share/man/ja/man1/guestmount.1.gz guestmount: /usr/share/man/man1/guestmount.1.gz guestmount: /usr/share/man/uk/man1/guestmount.1.gz
Tag: Snippets
Scripting DNS lookups
Are you writing a script and some command doesn’t accept hostnames and you don’t want to inline the IP address? dig +short
is your friend!
$ dig +short gbenson.net 69.163.152.201
Which APT repository did a package come from?
$ apt policy wget wget: Installed: 1.21.2-2ubuntu1 Candidate: 1.21.2-2ubuntu1 Version table: *** 1.21.2-2ubuntu1 500 500 http://gb.archive.ubuntu.com/ubuntu jammy/main amd64 Packages 100 /var/lib/dpkg/status
Container debugging minihint
What’s in my container?
-
$ podman ps --ns CONTAINER ID NAMES PID CGROUPNS IPC MNT NET PIDNS USERNS UTS fe11359293e8 eloquent_austin 11090 4026532623 4026532621 4026532421 4026532624 4026531837 4026532622
-
$ sudo ls -l /proc/11090/root/ total 22628 lrwxrwxrwx. 1 root root 7 Jul 25 2019 bin -> usr/bin dr-xr-xr-x. 2 root root 6 Jul 25 2019 boot drwxr-xr-x. 5 root root 360 Jan 24 12:03 dev drwxr-xr-x. 1 root root 183 Jan 23 16:43 etc ...
Thank you.
[28 Jan@1135UTC] UPDATE—Actually, this doesn’t seem to work with newer systems, sorry!
Building GDB on a freshly installed machine FAQ
So you just installed Fedora, RHEL or CentOS and now you want to build GDB from source.
- How do you make sure everything you need to build it is installed?
# dnf builddep gdb
- Did it say,
No such command: builddep
? Do this, then try again:# dnf install dnf-plugins-core
- Did it say,
dnf: command not found…
? You’re using yum, try this:# yum-builddep gdb
- Did it say,
yum-builddep: command not found…
? Do this, then try again:# yum install yum-utils
Thank you, you’re welcome.