VAR_SHELL_GETLENGTH parameter (defines the unit for the lengths of variable values that are replaced in format ${#variable})

Format

VAR_SHELL_GETLENGTH {BYTE|CHARACTER}

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Description

This parameter defines the unit for the lengths of variable values that are replaced in the format ${#variable}.

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Operands

BYTE

Specifies that the length of a value stored in variable in the format ${#variable} is to be replaced by the length in bytes.

CHARACTER

Specified that the length of a value stored in variable in the format ${#variable} is to be replaced by the lengths in characters.

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Examples

This example executes echo ${#CVAL} to obtain the length of the value of variable CVAL in which character string abcdef is set.

• Specifying BYTE (replace by the length in bytes) in the VAR_SHELL_GETLENGTH parameter or omitting the VAR_SHELL_GETLENGTH parameter

  The lengths of multibyte characters vary according to the execution environment. The following example assumes that a Linux UTF-8 environment is used:

  CVAL=abcdef
  echo ${#CVAL}

  Because abcdef is interpreted as being 12 bytes, 12 is output to the standard output.

• Specifying CHARACTER (replace by the length in characters) in the VAR_SHELL_GETLENGTH parameter

  CVAL=abcdef
  echo ${#CVAL}

  Because abcdef consists of eight characters, 8 is output to the standard output.

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