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Size: 524
Comment: first-line; also a bit more explicit wording
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Size: 678
Comment: its about length.. it should also bring examples for arrays
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{{{ ${#arrayname[@]} }}} Returns the Number of Elements in an Array. {{{ ${#arrayname[i]} }}} Returns the length of the Arrays Element i. |
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.