**Euan** @ek@wobscale.social · Aug 18, 2018, 06:00

**Euan** @ek@wobscale.social · Aug 18, 2018, 06:00

Euan @ek@wobscale.social

the best and worst implementation of realpath I've seen:

sed '/^[^/]/s@^@'"$PWD"'/@
s@/\.\.$@/../@;s@/$\./$\{1,\}@/@g;:0
s@[^/][^/]*//*\.\./@/@;t 0
s@^/*\.\./@/@;s@//*@/@g;s@/\.\{0,1\}$@@;s@^$@/@'

**Euan** @ek@wobscale.social · Aug 18, 2018, 06:01

**Euan** @ek@wobscale.social · Aug 18, 2018, 06:01

Euan @ek@wobscale.social

As far as I can tell, it works!

echo '..' | sed ..... => /home

echo 'foo/../foo' | sed ... => /home/esk/foo

But also why does this exist

**Euan** @ek@wobscale.social · 2018-08-18T06:07:55Z

Euan @ek@wobscale.social

Original commit that added it doesn't totally answer why it exists, but I guess it's the best I'll get for now. It was a lot shorter back then too!

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