Installing Android Studio on Linux starts with a 1.5 GB download that unpacks to 3.5 GB before the Android SDK arrives. The dependency list has gone stale. The official page still asks 64-bit Ubuntu users for i386 libraries, while every 32-bit binary inside the archive is a payload for a phone, not for your desktop.
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tar turns a folder into a single file on any Linux system, and the same command compresses it on the way. Understanding the option string is the whole job, because tar -czvf stacks four unrelated jobs into one word. What the letters in tar -czvf are doing Read the string as four jobs rather than
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A for loop that renames files can act on half a filename, because bash splits the word list on whitespace before the body runs. A file holding the names report final.txt and notes.txt reaches the loop as three words, so the command in the body runs against a path that does not exist. Quoting inside
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A dual boot keeps Ubuntu in three places, and the partition is only one of them. The root filesystem sits on its own partition, the bootloader sits on the EFI system partition, and the firmware keeps a pointer to that bootloader in its own boot list. Delete the partition on its own and the machine
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Changing the DNS server on Linux sticks only when the command lands where the component that owns the setting reads it. On Ubuntu, Fedora, Debian, and Arch that component is systemd-resolved, and /etc/resolv.conf is a symlink it rebuilds. NetworkManager and netplan hold the same value on the machines where they own the connection, which is
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A link name can point at one release today and another tomorrow. A deploy usually calls that link www/current, and ln -s writes it with one flag deciding what happens when the name is already taken. Leave out -n and ln treats a directory name as a directory, so the link you meant to replace
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Installing an RPM package on Ubuntu can still leave a program that will not start, because the conversion never touches the binary inside it. I compared three Fedora 44 packages against an Ubuntu 24.04 host to find where a conversion stops paying off, and the answer turned out to be a version number the program
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A server you SSH into has its own idea about which editor you should use, and it rarely matches yours. Terminal based text editors come in two families, and the family decides how long your first edit takes. Modal editors such as Vim give you a keystroke grammar that pays off across a long session
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Slack’s Linux download page never prints a version number, so the choice between four package formats is made blind. All of them carry the same build today, and it is 4.52.155. I compared the checksum of the .deb from Slack’s download host against the one in Slack’s own apt repository index, and I read the
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chown changes the owner and the group of a file or a directory on Linux, and nothing else. The command writes the two fields that sit beside the permission string in a long listing, and the permission string belongs to a different program. What sends readers searching is the reporting. The change line names the
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