我有一个相对路径
$base_path = "input/myMock.TGZ";
myMock.TGZ
是位于输入文件夹中的文件名。文件名可以更改。但路径始终存储在$base_path
中。
我需要检查该文件是否存在于$base_path
中。
发布于 2010-04-08 23:42:01
你可能想要一个exists的变种。perldoc -f "-f“
-X FILEHANDLE
-X EXPR
-X DIRHANDLE
-X A file test, where X is one of the letters listed below. This unary operator takes one argument,
either a filename, a filehandle, or a dirhandle, and tests the associated file to see if something is
true about it. If the argument is omitted, tests $_, except for "-t", which tests STDIN. Unless
otherwise documented, it returns 1 for true and '' for false, or the undefined value if the file
doesn’t exist. Despite the funny names, precedence is the same as any other named unary operator.
The operator may be any of:
-r File is readable by effective uid/gid.
-w File is writable by effective uid/gid.
-x File is executable by effective uid/gid.
-o File is owned by effective uid.
-R File is readable by real uid/gid.
-W File is writable by real uid/gid.
-X File is executable by real uid/gid.
-O File is owned by real uid.
-e File exists.
-z File has zero size (is empty).
-s File has nonzero size (returns size in bytes).
-f File is a plain file.
-d File is a directory.
-l File is a symbolic link.
-p File is a named pipe (FIFO), or Filehandle is a pipe.
-S File is a socket.
-b File is a block special file.
-c File is a character special file.
-t Filehandle is opened to a tty.
-u File has setuid bit set.
-g File has setgid bit set.
-k File has sticky bit set.
-T File is an ASCII text file (heuristic guess).
-B File is a "binary" file (opposite of -T).
-M Script start time minus file modification time, in days.
发布于 2010-04-08 23:10:20
发布于 2010-04-08 23:11:27
您可以使用:if(-e $base_path)
https://stackoverflow.com/questions/2601027
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