ucat(USP)

Name

ucat : "cat" without error when designated file does not exist

Synopsis

Usage   : ucat <file1> [<file2> ...]

Version : Wed Apr  6 14:16:52 JST 2022

Edition : 1

Description

Concatinate existing files designated as arguments.

If there is a non-existing file in arguments, error code is 0.

Example

$ cat a

1

$ cat b

cat: b: No such a file or directory.

$ ucat a b > c

$ echo $?

0                   <- Return code is 0

$ cat c

1                   <- Only file "a" is an output