Zsh and Prezto files don't always reside in `~/`. Instead, they have
a more spec compliant location (`${ZDOTDIR:-$HOME}/`). Make them
unambiguous in the documentation. Likewise, for `$GNUPGHOME`.
Further, add instruction for optionally setting up Prezto in
`$XDG_CONFIG_HOME`.
While at this, also add clarification on relative ordering of some of
the modules, apply more formatting tweaks and doc improvements.
General purpose reformating and rewording in (a few places). This should
also make markdown linting happier.
Prefer back-ticks wherever useful and use `console` for code blocks to
be executed on terminal.
Also, update references links wherever possible (including update from
'http://' to 'https://').
`tty` command infers the current TTY from file descriptor 0.
`$TTY` gives current TTY directly. The latter works even when
file descriptor 0 is redirected. It's also over 1000 times faster.
From GnuPG changelog:
> Removed the GPG_AGENT_INFO related code. GnuPG does now
> always use a fixed socket name in its home directory.
Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
If `GPG_AGENT_PID` is unset, grep will succeed if another gpg-agent is
running as it will match the string `gpg-agent` where the PID was an
empty string. Set a default value for grep to a value that will never
match if unset, i.e. -1.
