• sjohannes@programming.dev
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    1 day ago

    Is this homework of some sort?

    By default, GNU ls will quote entries containing certain special or unprintable characters. For example, if a file name contains the space character, GNU ls will print e.g. 'hello world'. This quoting is done using Bash syntax.

    In Bash, 'folder'$'\003' (or $'folder\003') represents the text folder followed by octal byte 3. Because you use Fish instead of Bash, this doesn’t work­—it has a different syntax to specify unprintable/special characters.

    I can tell you how to refer to this file in Fish, but I hesitate to do it if it’s for homework. What I will do is point you to the part of the Fish documentation where this is (kind of) explained: in Fish for bash users#Quoting.

  • AbidingOhmsLaw@lemmy.ml
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    2 days ago

    Fish is the command line shell your using (similar to bash). Usaslly the $ symbol perceeds a variable name, hence the error. Do you have a folder with a $ in the name?

      • AbidingOhmsLaw@lemmy.ml
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        1 day ago

        Yep as others have noted put a \ in front of each special character. The \ tells the system to treat the following character as a alphanumeric character in the string and not as a operator or a command. Since ', $ and \ are all special characters you will need a \ just before each when typing this name. Also as mentioned do this with a benign command like ls first to make sure your only acting on that specific directory or you might have a bad day.

        Edit: How the heck did you get some of those folder names? Looks like a script with incorrect variable/macro substitution made these.

      • Digit@lemmy.wtf
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        1 day ago

        ‘folder’$‘\003’

        Oh that is unpleasantly fiddly to insert all the backslashes to escape the bits. Testing here, (fiddly to even make a dir called that, lol), for fun, instead of just pressing tab, … is it just the $ and the \ you need to escape? and the ’ are fine? Results here are inconclusive, not sure I managed to make a file with the same name, it showing here with extra outer '.

        Probably easier to just interactively… but yeah, in case needing to have it written for a script… probably easiest still to just press tab, to see how it arranges the escape syntax, and paste that into your script. ;)

        The fi in fish is friendly interactive, after all.

      • ludrol@programming.dev
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        1 day ago

        What does ls show?

        you can escape special charcters with \ something like \'folder\'\$\'\\003\' might work

        be careful with rm -rf as you might delete your entire disk if done badly. use some other command to test if it targets the correct directory like ls \'folder\'\$\'\\003\'