Free Software

Reads input from files (or the standard input, if none are supplied) and prints it on the standard output, replacing references to environment variables with their actual values.

Usual shell-style references are understood ($NAME, ${NAME}, ${NAME:-word}, ${NAME:+word}, ${NAME:=word}, ${NAME:?word}. A special ternary construct is provided: ${NAME:|word1|word2}, which expands to word1 if NAME is set and to word2 otherwise. Additionally, conditional constructs, comments and quotation sequences are also understood.

Registration Date: Sat Jan 30 20:39:24 2021
License: GNU General Public License V3 or later
Development Status: 5 - Production/Stable