র‍্যাম থেকে nginx এর কনফিগ ডাম্প করা

# Set pid of nginx master process here
pid=8192

# generate gdb commands from the process's memory mappings using awk
cat /proc/$pid/maps | awk '$6 !~ "^/" {split ($1,addrs,"-"); print "dump memory mem_" addrs[1] " 0x" addrs[1] " 0x" addrs[2] ;}END{print "quit"}' > gdb-commands

# use gdb with the -x option to dump these memory regions to mem_* files
gdb -p $pid -x gdb-commands

# look for some (any) nginx.conf text
grep worker_connections mem_*
grep server_name mem_*

#!/usr/bin/awk -f
### Setup
# We're searching for a keyword followed by an open brace to start
# And the a close brace at the start of a line to end
# Also include commented sections, cause otherwise they look funny
BEGIN {
  start="[[:alpha:]_#]+ \\{$";
  end="^#?}"
}

# Shortcut to extract a regex pattern from $0
function extract(ere) { return substr($0, match($0, ere), RLENGTH) }

# Check for end conditions first
# This way we end the section before we print below

# For the primary end condition, print out the matched bit
$0 ~ end { print extract(end); go=0}
# And a safety stop: bail on any non-printable lower-ASCII characters
/[\x00-\x08\x0e-\x19]/ { go=0 }

# If we're in a section, print the line!
go {print}

# Otherwise, check for our starting condition
# If we find it, print just that bit and turn on our flag
!go && $0 ~ start {
  go=1;
  print "### Extracted from memory dump:";
  print extract(start)
}