s/x/y is common syntax: > A related habit uses editor commands to signify corrections to previous text. This custom faded in email as more mailers got good edi

s/x/y is common syntax: > A related habit uses editor commands to signify corrections to previous text. This custom faded in email as more mailers got good editing capabilities, only to take on new life on IRCs and other line-based chat systems. [...] The s/Erik/Eric/ says “change Erik to Eric in the preceding”. This syntax is borrowed from the Unix editing tools ed and sed, but is widely recognized by non-Unix hackers as well. http://catb.org/jargon/html/writing-style.html http://catb.org/jargon/html/writing-style.html