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{{{
${#arrayname[@]}
}}}

Returns the Number of Elements in an Array.

{{{
${#arrayname[i]}
}}}

Returns the length of the Arrays Element i.

----
CategoryShell

Is there a function to return the length of a string?

The fastest way, not requiring external programs (but usable only with BASH and KornShell): 

${#varname}

or for Bourne shells: 

expr "$varname" : '.*'

(expr prints the number of characters matching the pattern .*, which is the length of the string.)

Another one: 

expr length "$varname"

(This is for a BSD/GNU version of expr. Do not use this, because it is not POSIX). 

${#arrayname[@]}

Returns the Number of Elements in an Array. 

${#arrayname[i]}

Returns the length of the Arrays Element i.

CategoryShell

BashFAQ/007 (last edited 2015-03-05 00:24:26 by izabera)