̾??

unlink — ?ǥ??쥯?ȥꥨ???ȥ??κ???

?饤?֥???

Standard C Library (libc, -lc)

????

<unistd.h> int unlink(const char *path)

????

unlink() ?????ƥॳ?????ϡ? path ?ǻ??ꤵ?줿???󥯤??ǥ??쥯?ȥ꤫?????????? ???Υ??󥯤ǻ??Ȥ????Ƥ????ե??????Υ??󥯿??򸺤餷?ޤ??? ?ե??????Υ??󥯿??? 0 ?ˤʤꡢ?ե??????򳫤??Ƥ????ץ????????ʤ??ʤ??ȡ? ?ե??????˴?Ϣ???뤹?٤ƤΥ꥽???????????Ѥ????ޤ??? ?Ǹ??Υ??󥯤????????줿?Ȥ??ˡ??ե??????򳫤??Ƥ????ץ??????? 1 ?İʾ夢???ȡ????󥯤Ϻ????????ޤ??????ե??????κ????ϡ? ???Υե??????ؤΤ??٤Ƥλ??Ȥ??Ĥ????????ޤDZ????????ޤ??? path ?????ϡ??ǥ??쥯?ȥ??Ǥ??äƤϤʤ??ޤ?????

??????

The unlink() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

???顼

unlink() ?ϡ??ʲ??ξ????˽????????Ԥ??ޤ???

[ENOTDIR]

?ѥ??ι??????????˥ǥ??쥯?ȥ??ʳ??Τ??Τ??ޤޤ??Ƥ??ޤ???

[ENAMETOOLONG]

?ѥ?̾?ι??????Ǥ? 255 ʸ?????ۤ??Ƥ??뤫?? ?ޤ??ϥѥ?̾???Τ? 1023 ʸ?????ۤ??Ƥ??ޤ???

[ENOENT]

???ꤵ?줿?ե????뤬¸?ߤ??ޤ?????

[EACCES]

???֥ѥ?̾?ι??????ǤˤĤ??Ƹ??????Ĥ????ݤ????Ƥ??ޤ???

[EACCES]

???????????󥯤??ޤ??ǥ??쥯?ȥ??ǡ??????ߵ??Ĥ????ݤ????Ƥ??ޤ???

[ELOOP]

?ѥ?̾???Ѵ??????Ȥ??˸??Ф??줿?????ܥ??å????󥯤?¿?????ޤ???

[EPERM]

???ꤵ?줿?ե????뤬?ǥ??쥯?ȥ??ˤʤäƤ??ޤ???

[EPERM]

???ꤵ?줿?ե??????Ϥ??줬?ѹ??Բ? (immutable) ?Ǥ??뤫?ɲ????? (append-only) ?Υե饰?????ꤵ???Ƥ??ޤ??? ?ܤ????????˴ؤ??Ƥ? chflags(2) ?ޥ˥奢???ڡ????򻲾Ȥ??Ƥ?????????

[EPERM]

?ե????????ޤ??ǥ??쥯?ȥ꤬???ƥ??å??ȥޡ??????졢 ?????????ե????????ޤ??ǥ??쥯?ȥ??ޤ??ϥե????뤬?? ͭ???ʥ桼?? ID ?˽?ͭ?????Ƥ??ޤ?????

[EBUSY]

???󥯤????????륨???ȥ꤬?? ?ޥ????ȺѤߥե????륷???ƥ??Υޥ????ȥݥ????ȤǤ???

[EIO]

?ǥ??쥯?ȥꥨ???ȥ??κ????椫??inode ?γ??????Ʋ??????? ?????ϥ??顼??ȯ?????ޤ?????

[EROFS]

???ꤵ?줿?ե????????ɼ??????ѥե????륷???ƥ????ˤ????ޤ???

[EFAULT]

path ?????????ץ??????˳??????Ƥ??줿???ɥ쥹???֤??ϰϳ????ؤ??Ƥ??ޤ???

??Ϣ????

chflags(2), close(2), link(2), rmdir(2), symlink(7)

????

unlink() ?ؿ??ϡ? Version 6 AT&T UNIX ???о줷?ޤ?????

?????? unlink() ?????ƥॳ?????Ǥϡ??????ѥ桼?????ǥ??쥯?ȥ????????Ǥ??Ƥ??ޤ??? ?????ˤ??äƥե????륷???ƥ??δ????????˲??????뤳?Ȥ??????ޤ????? ???????¹Ԥ??뤳?Ȥϡ????Ǥ˵??Ĥ????ʤ??ʤäƤ??ޤ???