VeraCrypt Volume Format Specification:

Each VeraCrypt volume contains an embedded backup header, located at the end of the volume (see above). The header backup is not a copy of the volume header because it is encrypted with a different header key derived using a different salt (see the section Header Key Derivation, Salt, and Iteration Count).

It may be possible to recover the encryption key. You might try asking on VeraCrypt forums/mailing lists or contacting a commercial data recovery service which understands VeraCrypt. Though I’m not familiar with VeraCrypt so I may be misunderstanding the cited documentation.

For doing stuff in a directory, I use a replacement for cd command.

For aliases:

alias +='git add'
alias +p='git add -p'
alias +u='git add -u'
alias -- -='cd -'
alias @='for i in'
alias c='cargo'
alias date='LANG=C date'
alias diff='cdiff'
alias gg='git grep -n'
alias grep='grep --color=auto'
alias ll='ls -o'
alias ls='ls -vFT0 --si --color=auto --time-style=long-iso'
alias rmd='rmdir'

I also have various small scripts and functions:

• a for package management (think apt but has simplified arguments which makes it faster to use in usual cases),
• e for opening file in Emacs,
• g for git,
• s for sudo.

And here’s ,:

$ cat ~/.local/bin/,
#!/bin/sh

if [ $# -eq 0 ]; then
	paste -sd,
else
	printf '%s\n' "$@" | paste -sd,
fi