s6-portable-utils: the s6-expr program
Keywords: s6-portable-utils command s6-expr expr

s6-portable-utils
Software
skarnet.org

# The `s6-expr` program

s6-expr evaluates an expression and writes the result to stdout.

## Interface

         s6-expr expression...

s6-expr acts as the generic expr utility, except that the : operator (pattern matching) is not supported.

s6-expr accepts an arbitrary number of arguments.

## Posixness

s6-expr is not suitable as a Single Unix expr program; however, if you are never using the pattern matching functionality, s6-expr scrupulously follows the rest of the specification.