On Mon, Jan 14, 2019 at 12:51:37PM +0100, Jean-François Berroyer wrote: > If a variable contains one '/' (or many) > and if this '/' is escaped with '\' by substitution mechanism > and if the escaped variable is concatenated with a string containing '/' as > prefix, and another string containing '/' as suffix > then all characters in prefix and suffix are escaped with '\' > The problem does not occurs in a "" context > > Repeat-By: > URL=http://example.com > ESCAPED_URL=${URL//\//\\\/} > echo 'My URL: '$ESCAPED_URL' ... OK' > echo '/My URL: http:\/\/example.com ... OK/' > echo "/My URL: $ESCAPED_URL ... OK/" > echo '/My URL: '$ESCAPED_URL' ... KO/'
I cannot reproduce whatever problem you're seeing. wooledg:~$ bash-5.0 wooledg:~$ URL=http://example.com wooledg:~$ ESCAPED_URL=${URL//\//\\\/} wooledg:~$ echo 'My URL: '$ESCAPED_URL' ... OK' My URL: http:\/\/example.com ... OK wooledg:~$ echo "/My URL: $ESCAPED_URL ... OK/" /My URL: http:\/\/example.com ... OK/ Looks correct to me. What output are you getting?
