in reply to Re^3: Program Not Found when run from browser page
in thread Program Not Found when run from browser page

In fact, no. If the path doesn't contain single quotes, you don't need to double the backslashes:

$ perl -wE 'say q(C:\Windows\System)'
C:\Windows\System

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I agree it's not exactly interpolation, but still.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^5: Program Not Found when run from browser page
by LanX (Saint) on Nov 13, 2024 at 22:07 UTC
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Re^5: Program Not Found when run from browser page
by harangzsolt33 (Deacon) on Nov 14, 2024 at 02:12 UTC
    Yeah, it's true, you don't need to double the backslash if they are enclosed in single quotes or q(), however if the backslash happens to be the last character in the string, then it must be double. So, it's just easier to remember to always double it.

    Incorrect: 'C:\Windows\'

    Correct: 'C:\Windows\\'

    Incorrect: q(C:\Windows\)

    Correct: q(C:\Windows\\)

    This is easier to rememeber: 'C:\\Windows\\' or "C:\\Windows\\"

[reply]
      It is worth mentioning that most Windows programs (nearly all, with the notable exception of CMD.EXE and Explorer.exe) do understand forward slashes as "path separator".

      So, for most system functions outside of Batch "Scripts", you can use "C:/Windows/".

      If in doubt, use e.g. catfile/catdir of File::Spec or canonpath of Path::Tiny.

      Update: in Stackexchange's "Retrocomputing" section someone writes the following, which coincides with my experience:

      All dedicated path names, like in syscalls, can be written with either slash. It's only within the command line scan of each command, that simple slashes get interpreted as switch indicators.

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