picoCTF - General Challenges

Challenge 156

First save output into file:

nc mercury.picoctf.net 7449 > FILE

Then change the ascii values to text:

awk '{ for(i=1;i<=NF;i++) printf("%c",$i); print "";  }' FILE

And to remove newlines, the output can be piped into sed command to remove newlines with blanks:

awk '{ for(i=1;i<=NF;i++) printf("%c",$i); print "";  }' FILE | sed ':a;N;$!ba;s/\n/+/g'

Challenge 170

Download the file and run it after giving execute permissions:

chmod u+x warm
./warm