Meaning and grammar of やるっきゃない


I few minutes ago on NHK news 「注目」 I've heard/saw the phrase 「やるっきゃない」. I have
no idea what it means.. And what grammar rules are here?




[っきゃ](http://www.weblio.jp/content/%E3%81%A3%E3%81%8D%E3%82%83) is an informal
spoken contraction of しか, a particle. やるっきゃない means やるしかない.

The particle しか is always followed by a negative of some sort, either an
explicit negative like ない or a predicate that is semantically negative such as
だめだ or あるもんか.

Taken together, しか＋ない means something like "only; nothing but". It commonly
follows nouns, but it can follow other sorts of constituents as well. When it
follows a verb, it means that the verb must be done or will unavoidably happen
(= "there is no alternative to 〜"). Your example やるっきゃない means something like
"have to do [it]".




[っきゃ](http://www.weblio.jp/content/%E3%81%A3%E3%81%8D%E3%82%83) is an informal
spoken contraction of しか, a particle. やるっきゃない means やるしかない.

The particle しか is always followed by a negative of some sort, either an
explicit negative like ない or a predicate that is semantically negative such as
だめだ or あるもんか.

Taken together, しか＋ない means something like "only; nothing but". It commonly
follows nouns, but it can follow other sorts of constituents as well. When it
follows a verb, it means that the verb must be done or will unavoidably happen
(= "there is no alternative to 〜"). Your example やるっきゃない means something like
"have to do [it]".

