2 SC2151

Vidar Holen edited this page 2015-10-03 21:33:27 -07:00

Table of Contents

• Only one integer 0-255 can be returned. Use stdout for other data.
• Problematic code:
• Correct code:
• Rationale:
• Exceptions:

Only one integer 0-255 can be returned. Use stdout for other data.

Problematic code:

myfunc() {
  return foo bar
}

Correct code:

myfunc() {
  echo foo
  echo bar
  return 0
}

Rationale:

In bash, return can only be used to signal success or failure (0 = success, 1-255 = failure).

To return textual or multiple values from a function, write them to stdout and capture them with command substitution instead.

See SC2152 for more information.

Exceptions:

None

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