I am new to unix and i saw a sh file with below command.
Can you please expalin the mening of
4 ${1+"$@"} 4< line.
My understanding is pass phrase will be read from file gnupg.passphrase.
Thanks
Code:
exec gpg --homedir /web/gnupg --passphrase-fd 4 ${1+"$@"} 4< /web/gnupg.passphraseMy understanding is pass phrase will be read from file gnupg.passphrase.
Thanks