auto.smb.sh

#!/bin/bash

key="$1"

for P in /bin /sbin /usr/bin /usr/sbin
do
	if [ -x $P/smbclient ]
	then
		SMBCLIENT=$P/smbclient
		break
	fi
done

[ -x $SMBCLIENT ] || exit 1


### per workgroup:
#WORKGROUP=$($SMBCLIENT -gNL $key 2>&1 | grep "^Domain=" | head -1 | sed -e "s/^[^\[]*\[//g" -e "s/\].*//g")
#CREDENTIALS=$(find /home/*/.config/smb/credentials/${WORKGROUP}/{key}.credentials | head -1)

### simplified:
CREDENTIALS=$(find /home/*/.config/smb/${key}.credentials 2> /dev/null | head -1)

opts="-fstype=cifs"
if [ "$CREDENTIALS" ]
  then
    opts="$opts,credentials=$CREDENTIALS"
    LOCAL_USER=$(dirname $CREDENTIALS | sed "s,^/home/\([^/]*\)/.*$,\1,g")
  else
    opts="$opts,guest"
    CREDENTIALS_DIR=""
    CREDENTIALS_DIR=$(find /home/*/.config/smb/ -maxdepth 0 2> /dev/null | head -1)
    if [ -z "$CREDENTIALS_DIR" ]; then 
      # no any credentials file or directory
      exit 1
    fi
    LOCAL_USER=$(dirname $CREDENTIALS_DIR | sed "s,^/home/\([^/]*\)/.*$,\1,g")
fi
opts="$opts,uid=$LOCAL_USER,gid=$LOCAL_USER"

$SMBCLIENT -gNL $key 2>/dev/null| awk -v key="$key" -v opts="$opts" -F'|' -- '
	BEGIN	{ ORS=""; first=1 }
	/Disk/	{
		  if (first)
			print opts; first=0
		  dir = $2
		  loc = $2
		  # Enclose mount dir and location in quotes
		  # Double quote "$" in location as it is special
		  gsub(/\$$/, "\\$", loc);
		  gsub(/\&/,"\\\\&",loc)
		  print " \\\n\t \"/" dir "\"", "\"://" key "/" loc "\""
		}
	END 	{ if (!first) print "\n"; else exit 1 }
	'