7

when we specify the file path some times we specify like ./filename and some time ../filename what is difference between these two?

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15

../ refers to the parent folder while ./ means the current folder

  • they are just a shortcut, so you dont have to write out long directory names. – Keltari Aug 25 '11 at 2:41
8

. means 'the current folder'.
.. means 'the folder containing the current folder'.

5

just in case you wonder, ./filename actually means the same thing as filename - however, on unix systems, the current path isn't searched for executables (for security reasons), so you have to explicitly say "look in the current directory"

1

Both are different. ./filename points to a file in current directory while ../filename points to a file in parent directory

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