I was playing alongside the nono delegate sandboxing tool and it greeted me alongside a warning: PATH entries the sandbox can compose to: ~/.local/bin/ which looked suspicious.
In another words, doing this in your ~/.bashrc or ~/.zshrc:
export PATH="$PATH:~/.local/bin/"
will not develop the ~ (tilde) into the residence way (or $HOME) as the tilde to residence enlargement happens lone in unquoted inputs, as additionally the bash records says:
If a term starts alongside an unquoted tilde character (‘~’), all of the characters up to the archetypal unquoted slash (…) are considered a tilde-prefix. (…)
Bash checks all changeable project for unquoted tilde-prefixes immediately following a ‘:’ or the archetypal ‘=’, and performs tilde enlargement in these cases. (…)
So alternatively of having /home/<user>/.local/bin/ added to PATH we end up alongside ./~/.local/bin/ added to PATH.
And to fix this, we can do this:
export PATH="$PATH:$HOME/.local/bin/"
Note that the unquoted type export PATH=$PATH:~/.local/bin really plant in Bash and Zsh, since tilde enlargement is additionally performed in changeable assignments following = and following all :. But relying on that is susceptible as for example, a whitespace volition interrupt the changeable assignment.
The issue can additionally be seen here:
$ ls -la total 0 drwxr-xr-x@ 2 dc personnel 64 Oct 2 13:37 . drwxr-x---+ 105 dc personnel 3360 Oct 2 13:37 .. $ mkdir -p ./~/.local/bin/ $ printf '#include <stdio.h>\nint main() { puts("hello"); }'>a.c; gcc a.c -o ./~/.local/bin/kek $ PATH="~/.local/bin/" kek hello $ tree -f . ├── ./~ │ └── ./~/.local │ └── ./~/.local/bin │ └── ./~/.local/bin/kek └── ./a.c 4 directories, 2 files
As we can see, the kek binary was established and executed from ./~/.local/bin/ — the residence directory was never involved.
Check your PATH
You can quickly inspect whether you have this issue with:
$ echo "$PATH" | grep -- '~'
or, to see all admission on its own line:
$ echo "$PATH" | tr ':' '\n' | grep '~' ~/.local/bin/
If it prints anything, go fix your .bashrc/.zshrc/.profile and substitute the ~ alongside $HOME :).
Btw, kudos to the nono tool for alert concerning this - equal although the alert could be additional verbose (PR incoming).
