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Linux Command

"ls -a" : (THIS COMMAND INCLUDE DOUBLE QUOTATION) In linux shell we can take command by using double quotation. But, command in double quotation is treated as single command including any spaces. So This command occur syntax error.

The difference of " and ' : Double quotation has variable substition while single quotation isn't. (Similar with f-string {})

example)

variable='test'
echo "$variable"
echo '$variable'

Additional...

For WSL, the command openning explorer with some path can be assigned.

function open() {
  Explorer.exe ${1//\//\\}
}
export -f open

add to ~/.bashrc