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getListing () {
    if [ "$1" = ""];
    then
        alcListDir ~/Projects/Haskell/ -f \
            | alcSortPath time | tac | xargs -n1 basename
    else
        alcListDir ~/Projects/Haskell/"$1"/ -f \
            | alcSortPath time | tac | xargs -n1 basename | sed -e "s/^/"$1"\//"
    fi
}

The above is giving me an error (when run with set -x) of:

+./rofi.sh:29> getListing ''
+getListing:1> [ '' '=' ']'
getListing:1: parse error: condition expected:

I'm invoking the function like so: getListing ""

What is the cause of the error?

Chris Stryczynski
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    Typo: No space between `""` and `]`. That statement is also better written as `if [ -z "$1" ]`. And the `sed` call leaves `$1` unquoted. Don't break out of the double quotes for `$1` there. – Kusalananda Mar 23 '19 at 18:09
  • The funny thing here is the error message, "condition expected". What I suppose happens is that since `""]` results in the final `]` that `[` wants, it thinks you tried to use a two-argument expression (not counting the `]`). The first arg should then be a condition and the second the operand to that condition. All conditions start with a dash, so anything else gives "condition expected". It's just hard to read here since there first arg is the empty string. `[ foo = ]` would give `zsh:1: parse error: condition expected: foo` which at least shows _where_ it expected the condition to be. – ilkkachu Mar 23 '19 at 18:58

0 Answers0