- Securely feeding a program with a password
- How to read from stdin in process substitution?
- Process substitution and cat: can't read stdin
I've read the above questions and I still can't work out how to do what I need.
I have a binary command I'll call
getreport that does the following:
- Prompt for a password (prompt sent to stderr)
- Read the password from stdin.
- Print extensive data to stdout.
I have another binary command to parse the output from the first command that I'll call
processreport. However, it doesn't work with stdin; it will only accept and process a file specified on the command line with a
-i flag. It reads from the file, does things with the data it reads in, and outputs data about what it did. (The
processreport command can also prompt for a password, entirely separately from
I want to use process substitution to make this possible in a single line, rather than requiring a temp file to hold the output of
processreport -i <(getreport)
However, I don't know how to make
getreport read in from the terminal the password it requires.
Is this possible?