X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=brc2;h=fdb2c060e6de9a0742e667d585f768be98b9001b;hb=602a1874cc11a7d371890cdae4c0dc982267ea89;hp=bd959d82dc824b6e597a10df51f9906f2c8633ec;hpb=d4366929e6e200155b010dc05ce74255ee6a45ed;p=distro-setup

diff --git a/brc2 b/brc2
index bd959d8..fdb2c06 100644
--- a/brc2
+++ b/brc2
@@ -6,12 +6,16 @@
 
 # * settings
 
-HISTFILE=$HOME/.bh
+if [[ $HISTFILE ]]; then
+  HISTFILE=$HOME/.bh
+fi
 
 source /a/bin/distro-setup/path-add-function
 path-add /a/exe
 # add this with absolute paths as needed for better security
 #path-add --end /path/to/node_modules/.bin
+## for yarn, etc
+#path-add --end /usr/lib/node_modules/corepack/shims/
 
 # pip3 --user things go here:
 path-add --end ~/.local/bin
@@ -19,6 +23,15 @@ path-add --ifexists --end /a/work/libremanage
 path-add --ifexists --end /a/opt/adt-bundle*/tools /a/opt/adt-bundle*/platform-tools
 path-add --ifexists --end /a/opt/scancode-toolkit-3.10.
 
+case $HOSTNAME in
+  sy|bo)
+    # https://askubuntu.com/questions/1254544/vlc-crashes-when-opening-any-file-ubuntu-20-04
+    if grep -qE '^VERSION_CODENAME="(nabia|focal)"' /etc/os-release &>/dev/null; then
+      export MESA_LOADER_DRIVER_OVERRIDE=i965
+    fi
+    ;;
+esac
+
 
 export WCDHOME=/a
 
@@ -48,6 +61,34 @@ fi
 
 # * functions
 
+multimic() {
+  local i
+  local -a sources
+
+  m pactl unload-module module-loopback
+  m pactl unload-module module-null-sink
+  m pactl unload-module module-remap-source
+
+  sources=($(pacmd list-sources | sed -rn 's/.*name: <([^>]+).*/\1/p'))
+
+  if (( ! $# )); then
+    i=0
+    for s in ${sources[@]}; do
+      e $i $s
+      i=$(( i+1 ))
+    done
+    read -r l
+    set -- $l
+  fi
+  m pactl load-module module-null-sink sink_name=ianinput sink_properties=device.description=ianinputs
+  for i; do
+    m pactl load-module module-loopback source=${sources[i]} sink_dont_move=true sink=ianinput
+  done
+  pactl load-module module-remap-source source_name=iancombine master=ianinput.monitor source_properties=device.description=iancombine
+}
+
+# h ssh test
+# For testing restrictive ssh.
 hstest() {
   install-my-scripts
   d=$(mktemp -d)
@@ -55,13 +96,20 @@ hstest() {
   s command ssh -F $d/config -i /q/root/h "$@"
 }
 
-hrtest() {
+# h rsync test
+# For testing restrictive rsync
+hrtest() { #
   install-my-scripts
   d=$(mktemp -d)
   sed '/^ *IdentityFile/d' ~/.ssh/config >$d/config
   s rsync -e "ssh -F $d/config -i /q/root/h" "$@"
 }
 
+# rsync as root and avoid the default restrictive h key & config.
+rootrsync() {
+  s rsync -e "ssh -F /root/.ssh/confighome" "$@"
+}
+
 
 slemacs() {
   local arg rtime v
@@ -109,6 +157,13 @@ rsync -rptL --delete --filter=". /b/ds/sl/rsync-filter" /a/opt/emacs-trisquel8-n
 EOF
 }
 
+rm-docker-iptables() {
+  s iptables -S  | gr docker | gr -- -A | sed 's/-A/-D/'| while read -r l; do sudo iptables  $l; done
+  s iptables -S -t nat | gr docker | gr -- -A | sed 's/-A/-D/'| while read -r l; do sudo iptables -t nat $l; done
+  s iptables -S | gr docker | gr -- -N | sed 's/-N/-X/'| while read -r l; do sudo iptables $l; done
+  s iptables -S -t nat | gr docker | gr -- -N | sed 's/-N/-X/'| while read -r l; do sudo iptables -t nat $l; done
+}
+
 # usage mkschroot [-] distro codename packages
 # - means no piping in of sources.list
 mkschroot() {
@@ -169,8 +224,10 @@ EOF
   fi
   sudo chroot $d apt-get update
   sudo DEBIAN_FRONTEND=noninteractive chroot $d apt-get -y dist-upgrade --purge --auto-remove
-  sudo DEBIAN_FRONTEND=noninteractive schroot -c $n -- apt-get install --allow-unauthenticated -y ${apps[@]}
   sudo cp -P {,$d}/etc/localtime
+  if (( ${#apps[@]} )); then
+    sudo DEBIAN_FRONTEND=noninteractive schroot -c $n -- apt-get install --allow-unauthenticated -y ${apps[@]}
+  fi
 }
 
 
@@ -216,10 +273,10 @@ tback() {
 # s sshfs bu@$host:/bu/home/md /bu/mnt -o reconnect,ServerAliveInterval=20,ServerAliveCountMax=30 -o allow_other
 
 eqgo() {
-  enn -M $(exiqgrep -i)
+  enn -M $(exiqgrep -i -r.\*)
 }
 eqgo1() {
-  enn -M $(exiqgrep -i|h1)
+  enn -M $(exipick -i -r.\*|h1)
 }
 
 
@@ -347,11 +404,15 @@ bbk() { # btrbk wrapper
   if $active; then
     ser stop btrbk.timer
   fi
-  if [[ $(systemctl is-active btrbk.service ||:) != inactive ]]; then
-    echo "cron btrbk is already running"
-    if $active; then ser start btrbk.timer; fi
-    return 1
-  fi
+  btrbk_is_active=$(systemctl is-active btrbk.service ||:)
+  case $btrbk_is_active in
+    inactive|failed) : ;;
+    *)
+      echo "bbk: error: systemctl is-active btrbk.service output: $btrbk_is_active"
+      if $active; then ser start btrbk.timer; fi
+      return 1
+      ;;
+  esac
   # run latest
   install-my-scripts
   # todo: consider changing this to srun and having the args come
@@ -379,6 +440,22 @@ bigclock() {
 
 nnn() { /a/opt/nnn -H "$@"; }
 
+locat() { # log-once cat
+  local files
+  ngset
+  files=(/var/local/cron-errors/* /home/iank/cron-errors/* /sysd-mail-once-state/*)
+  case ${#files[@]} in
+    0) : ;;
+    1)
+      echo ${files[0]}
+      head ${files[0]}
+      ;;
+    *)
+      head ${files[@]}
+      ;;
+  esac
+  ngreset
+}
 
 # duplicated somewhat below.
 jrun() { # journal run. run args, log to journal, tail and grep the journal.
@@ -446,14 +523,16 @@ lipush() {
   # note, i had --delete-excluded, but that deletes all files in --exclude-from on
   # the remote site, which doesn't make sense, so not sure why i had it.
   local p a
-  p=(/a/opt/{emacs-debian11{,-nox},mu,emacs} /a/bin /a/exe /a/h /a/c /p/c/machine_specific/vps{,.hosts})
+  # excluding emacs for now
+  #p=(/a/opt/{emacs-debian11{,-nox},mu,emacs} /a/bin /a/exe /a/h /a/c /p/c/machine_specific/vps{,.hosts})
+  p=(/a/bin /a/exe /a/h /a/c /p/c/machine_specific/vps{,.hosts})
   a="-ahviSAXPH --specials --devices --delete --relative --exclude-from=/p/c/li-rsync-excludes"
   ret=0
   for h in li je bk; do
-    m s rsync "$@" $a ${p[@]} /p/c/machine_specific/$h root@$h.b8.nz:/ || ret=$?
-    # only li is debian11
-    p[0]=/a/opt/emacs-ubuntu20.04
-    p[1]=/a/opt/emacs-ubuntu20.04-nox
+    m s rsync "$@" $a ${p[@]} /p/c/machine_specific/$h root@$h.b8.nz:/
+    ## only li is debian11
+    #p[0]=/a/opt/emacs-trisuqel10
+    #p[1]=/a/opt/emacs-trisquel10-nox
   done
   m s rsync "$@" -ahviSAXPH root@li.b8.nz:/a/h/proposed-comments/ /a/h/proposed-comments || ret=$?
   return $ret
@@ -484,27 +563,26 @@ EOF
   done
 }
 bindpushb8() {
-  dsign iankelling.org expertpathologyreview.com zroe.org amnimal.ninja
   lipush
   for h in li bk; do
     m sl $h <<'EOF'
 source ~/.bashrc
-m dnsup
 m dnsb8
 EOF
   done
 }
 
 dnsup() {
-  conflink
-  m ser reload bind9
+  conflink -f
+  m ser reload named
 }
 dnsb8() {
   local f=/var/lib/bind/db.b8.nz
-  ser stop bind9
-  sudo rm -fv $f.jnl
-  sudo install -m 644 -o bind -g bind /p/c/machine_specific/vps/bind-initial/db.b8.nz $f
-  ser restart bind9
+  m ser stop named
+  m sleep 1
+  m sudo rm -fv $f.jnl $f.signed.jnl
+  m sudo install -m 644 -o bind -g bind /p/c/machine_specific/vps/bind-initial/db.b8.nz $f
+  m ser restart named
 }
 dnsecgen() {
   # keys generated like this
@@ -706,6 +784,10 @@ fastboot() {
 
 kdecd() { /usr/lib/x86_64-linux-gnu/libexec/kdeconnectd; }
 
+bat() {
+  cat /sys/class/power_supply/BAT0/capacity
+}
+
 # List of apps to install/update
 # Create from existing manually installed apps by doing
 # fdroidcl update
@@ -954,10 +1036,9 @@ hstatus() {
 # work log
 wlog() {
   local day now i
-  now=$(date +%s)
   for (( i=0; i<60; i++ )); do
-    day=$( date +%F -d @$((now - 86400*i )) )
-    date "+%a %b %d" -d @$((now - 86400*i )) | tr '\n' ' '
+    day=$( date +%F -d @$((EPOCHSECONDS - 86400*i )) )
+    date "+%a %b %d" -d @$((EPOCHSECONDS - 86400*i )) | tr '\n' ' '
     /a/opt/timetrap/bin/t d -ftotal -s $day -e $day all -m '^w|lunch$'
   done
 }
@@ -1015,9 +1096,11 @@ jrf() { journalctl -n 200 -f "$@" ; }
 
 ccomp journalctl jtail jr jrf
 
-kff() { # keyboardio firmware flash
-  pushd /a/bin/distro-setup/Arduino/Model01-Firmware
-  yes $'\n' | make flash
+kff() { # keyboardio firmware flash. you must hold down the tilde key
+  pushd /a/opt/Model01-Firmware
+  # if we didn't want this yes hack, then remove "shell read" from
+  # /a/opt/Kaleidoscope/etc/makefiles/sketch.mk
+  yes $'\n' | VERBOSE=1 make flash
   popd
 }
 
@@ -1057,8 +1140,8 @@ Address = 10.8.0.$ipsuf/24
 PostUp = ping -c1 10.8.0.1 ||:
 
 [Peer]
-# li
-PublicKey = zePGl7LoS3iv6ziTI/k8BMh4L3iL3K2t9xJheMR4hQA=
+# li. called wgmail on that server
+PublicKey = CTFsje45qLAU44AbX71Vo+xFJ6rt7Cu6+vdMGyWjBjU=
 AllowedIPs = 10.8.0.0/24
 Endpoint = 72.14.176.105:1194
 PersistentKeepalive = 25
@@ -1066,7 +1149,7 @@ EOF
   umask $umask_orig
   # old approach. systemd seems to work fine and cleaner.
   rm -f ../network/interfaces.d/wghole
-  cedit -q $host /p/c/machine_specific/li/filesystem/etc/wireguard/wghole.conf <<EOF || [[ $? == 1 ]]
+  cedit -q $host /p/c/machine_specific/li/filesystem/etc/wireguard/wgmail.conf <<EOF || [[ $? == 1 ]]
 [Peer]
 PublicKey = $(cat hole-pub.key)
 AllowedIPs = 10.8.0.$ipsuf/32
@@ -1075,41 +1158,77 @@ EOF
 }
 
 
+mns() { # mount namespace
+  ns=$1
+  shift
+  s mkdir -p /root/mount_namespaces
+  if ! sudo mountpoint /root/mount_namespaces >/dev/null; then
+    m sudo mount --bind /root/mount_namespaces /root/mount_namespaces
+  fi
+  m sudo mount --make-private /root/mount_namespaces
+  if [[ ! -e /root/mount_namespaces/$ns ]]; then
+    m sudo touch /root/mount_namespaces/$ns
+  fi
+  if ! sudo mountpoint /root/mount_namespaces/$ns >/dev/null; then
+    m sudo unshare --propagation slave --mount=/root/mount_namespaces/$ns /bin/true
+  fi
+  m sudo -E /usr/bin/nsenter --mount=/root/mount_namespaces/$ns "$@"
+}
+
+mnsr() { # mns run
+  local ns=$1
+  shift
+  mns $ns sudo -u iank -E env "PATH=$PATH" "$@"
+}
+
+mnsnonet() {
+  ns=$1
+  if ! s ip netns list | grep -Fx nonet &>/dev/null; then
+    s ip netns add nonet
+  fi
+  mns $ns --net=/var/run/netns/nonet sudo -E -u iank /bin/bash
+  lomh
+}
+
+
 lom() {
+  # l = the loopback device
   local l base
   if [[ $1 == /* ]]; then
     base=${1##*/}
-    if mountpoint -q /mnt/$base; then
+    fs_file=$1
+    if mns $base mountpoint -q /mnt/$base; then
       return 0
     fi
-    l=$(losetup -j $1 | sed -rn 's/^([^ ]+): .*/\1/p' | head -n1 ||:)
+    l=$(losetup -j $fs_file | sed -rn 's/^([^ ]+): .*/\1/p' | head -n1 ||:)
     if [[ ! $l ]]; then
       l=$(sudo losetup -f)
-      sudo losetup $l $1
+      m sudo losetup $l $fs_file
     fi
     if ! sudo cryptsetup status /dev/mapper/$base &>/dev/null; then
       if ! sudo cryptsetup luksOpen $l $base; then
-        sudo losetup -d $l
+        m sudo losetup -d $l
         return 1
       fi
     fi
-    sudo mkdir -p /mnt/$base
-    sudo mount /dev/mapper/$base /mnt/$base
-    sudo chown $USER:$USER /mnt/$base
+    m sudo mkdir -p /mnt/$base
+    m mns $base mount /dev/mapper/$base /mnt/$base
+    m mns $base chown $USER:$USER /mnt/$base
+    lomh
   else
     base=$1
-    if mountpoint /mnt/$base &>/dev/null; then
-      sudo umount /mnt/$base
+    if mns $base mountpoint /mnt/$base &>/dev/null; then
+      m mns $base umount /mnt/$base
     fi
     if sudo cryptsetup status /dev/mapper/$base &>/dev/null; then
-      if ! sudo cryptsetup luksClose /dev/mapper/$base; then
+      if ! m sudo cryptsetup luksClose /dev/mapper/$base; then
         echo lom: failed cryptsetup luksClose /dev/mapper/$base
         return 1
       fi
     fi
-    l=$(losetup -j $1 | sed -rn 's/^([^ ]+): .*/\1/p' | head -n1 ||:)
+    l=$(losetup -l --noheadings | awk '$6 ~ /\/'$base'$/ {print $1}')
     if [[ $l ]]; then
-      sudo losetup -d $l
+      m sudo losetup -d $l
     else
       echo lom: warning: no loopback device found
     fi
@@ -1178,6 +1297,16 @@ mbdisable() {
   mv -T $src $dst
   set +x
 }
+mb2disable() {
+  local mb=$1
+  dst=/m/md/$mb
+  src=/m/4e2/$mb
+  set -x
+  [[ -e $src ]] || { set +x; return 1; }
+  if [[ -L $dst ]]; then rm $dst; fi
+  mv -T $src $dst
+  set +x
+}
 
 
 mdt() {
@@ -1190,6 +1319,54 @@ mo() { xset dpms force off; } # monitor off
 mpvd() {
   mpv --profile=d "$@";
 }
+# mpv all media files in . or $1
+mpvm() {
+  local -a extensions arg
+  # get page source of https://en.wikipedia.org/w/index.php?title=Video_file_format&action=edit
+  # into /a/x.log, then
+  # grep '^| *\.' /a/x.log | sed 's/| *//;s/,//g'
+  extensions=(
+    .webm
+    .mkv
+    .flv
+    .flv
+    .vob
+    .ogv .ogg
+    .drc
+    .gif
+    .gifv
+    .mng
+    .avi
+    .MTS .M2TS .TS
+    .mov .qt
+    .wmv
+    .yuv
+    .rm
+    .rmvb
+    .viv
+    .asf
+    .amv
+    .mp4 .m4p .m4v
+    .mpg .mp2 .mpeg .mpe .mpv
+    .mpg .mpeg .m2v
+    .m4v
+    .svi
+    .3gp
+    .3g2
+    .mxf
+    .roq
+    .nsv
+  )
+  arg=("(" -iname "*${extensions[0]}")
+  for (( i=1 ; i < ${#extensions[@]}; i++ )); do
+    arg+=(-o -iname "*${extensions[i]}")
+  done
+  arg+=(")")
+  dir=${1:-.}
+  # debug:
+  #find $dir "${arg[@]}" -size +1M
+  find $dir "${arg[@]}" -size +1M -exec mpv --profile=d '{}' +
+}
 mpvs() {
   mpv --profile=s "$@";
 }
@@ -1215,8 +1392,7 @@ allmyirc() {
 }
 
 mygajim() {
-  local now time time_sec time_pretty
-  now=$(date +%s)
+  local time time_sec time_pretty
   sqlite3 -separator ' ' /p/c/subdir_files/.local/share/gajim/logs.db "select time, message from logs where contact_name = 'iank' and jid_id = 17;" | while read -r time l; do
     case $time in
       16*) : ;;
@@ -1229,10 +1405,14 @@ mygajim() {
     echo $time_pretty "$l"
     time_sec=${time%%.*}
     # only look at the last 18 days. generally just use this for timesheet.
-    if (( time_sec < now - 60 * 60 * 24 * 18 )); then break; fi
+    if (( time_sec < EPOCHSECONDS - 60 * 60 * 24 * 18 )); then break; fi
   done
 }
 
+allmygajim() {
+  sqlite3 -separator ' ' /p/c/subdir_files/.local/share/gajim/logs.db "select time, message from logs where contact_name = 'iank'" | less
+}
+
 gajlogs() {
   sqlite3 -separator ' ' /p/c/subdir_files/.local/share/gajim/logs.db "select time, message from logs" | less
 }
@@ -1266,6 +1446,9 @@ ngo() {
 otp() {
   oathtool --totp -b "$*" | xclip -selection clipboard
 }
+j() {
+  "$@" |& pee "xclip -r -selection clipboard"
+}
 
 
 pakaraoke() {
@@ -1429,10 +1612,6 @@ spd() {
   PATH=/usr/local/spdhackfix:$PATH command spd "$@"
 }
 
-spend() {
-  sudo systemctl suspend
-}
-
 spamf() { # spamtest on FILE
   local spamcpre spamdpid
 
@@ -1470,7 +1649,6 @@ testmail() {
 # always run this first, edit the test files, then run the following
 testsieve() {
   sieve-filter ~/sieve/maintest.sieve ${1:-INBOX} delete 2> >(head; tail) >/tmp/testsieve.log  && sed -rn '/^Performed actions:/,/^[^ ]/{/^ /p}' /tmp/testsieve.log | sort | uniq -c
-  _dosieve
 }
 runsieve() {
   c ~/sieve; cp personal{test,}.sieve; cp lists{test,}.sieve; cp personalend{test,}.sieve
@@ -1478,6 +1656,102 @@ runsieve() {
   sed -r '/^info: filtering:/{h;d};/^info: msgid=$/N;/^info: msgid=.*left message in mailbox [^ ]+$/d;/^info: msgid=/{H;g};/^info: message kept in source mailbox.$/d' /tmp/testsieve.log
 }
 
+# usage:
+# alertme SUBJECT
+# printf "subject\nbody\n" | alertme
+alertme() {
+  if [[ -t 0 ]]; then
+    exim -t <<EOF
+From: alertme@b8.nz
+To: alerts@iankelling.org
+Subject: $*
+EOF
+  else
+    read sub
+    { cat <<EOF
+From: alertme@b8.nz
+To: alerts@iankelling.org
+Subject: $sub
+
+EOF
+      cat
+    } | exim -t
+  fi
+}
+daylertme() {
+  if [[ -t 0 ]]; then
+    exim -t <<EOF
+From: alertme@b8.nz
+To: daylert@iankelling.org
+Subject: $*
+EOF
+  else
+    read sub
+    { cat <<EOF
+From: alertme@b8.nz
+To: daylert@iankelling.org
+Subject: $sub
+
+EOF
+      cat
+    } | exim -t
+  fi
+}
+
+# alert when a page goes live. not urgent.
+alert200() {
+  url="$1"
+  tmpdir="$(mktemp -d)"
+  cd $tmpdir
+  while true; do
+    if torsocks wget -q "$url"; then
+      alertme $tmpdir
+    fi
+    sleep $(( 600 + RANDOM % 300 ))
+  done
+}
+
+# alert on changes to a webpage (just the base page that curl gets)
+# usage: weblert URL [SUBJECT...]
+weblert() {
+  local u old new quiet
+  quiet=false
+  case $1 in
+    # dont send a diff of the html. some html is not very readable
+    -q) quiet=true
+        shift
+        ;;
+  esac
+  u="$1"
+  shift
+  subject="${*:-weblert}"
+  old=$(curl -s "$u") ||:
+  while true; do
+    new=$(curl -s "$u") ||:
+    if [[ $old && $new ]]; then
+      if [[ $new != "$old" ]]; then
+        if $quiet; then
+          echo | daylertme "$subject"
+        else
+          diff <(printf "%s\n" "$old") <(printf "%s\n" "$new") | daylertme "$subject" ||:
+        fi
+      fi
+      old="$new"
+    fi
+    sleep $(( 60 + RANDOM % 120 ))
+  done
+}
+
+torshell() {
+  # per man torsocks
+  source `type -p torsocks` on
+}
+
+eless2() {
+  less /var/log/exim4/mymain
+}
+
+
 # mail related
 testexim() {
   # testmail above calls sendmail, which is a link to exim/postfix.
@@ -1496,10 +1770,9 @@ testexim() {
   #
   # -t = get recipient from header
   exim -d -t <<'EOF'
-From: i@dmarctest.b8.nz
-To: mailman@dev.fsf.org
+From: root@$(hostname-f)
+To: root@$(hostname-f)
 Subject: test2
-Reply-to: rtest@iankelling.org
 
 This is a test message.
 EOF
@@ -1570,20 +1843,67 @@ enn() {
   m s nsenter -t $pid -n -m $ecmd "$@"
 }
 
+# get pid of systemd service
+servicepid() {
+  local pid unit dir
+  unit="$1"
+  pid=$(systemctl show --property MainPID --value "$unit")
+  case $pid in
+    [1-9]*) : ;;
+    *)
+
+      dir=/sys/fs/cgroup/system.slice
+      if [[ ! -d $dir ]]; then
+        # t10 and older directory.
+        dir=/sys/fs/cgroup/systemd/system.slice
+      fi
+
+      # 0 or empty.  This file includes the MainPid, so I expect we
+      # could just get this in the first place, but i don't know if that
+      # is always the case.
+      pid=$(head -n1 $dir/${unit%.service}.service/cgroup.procs)
+      ;;
+  esac
+  if [[ $pid ]]; then
+    printf "%s\n" "$pid"
+  else
+    return 1
+  fi
+}
+
 sdnbash() { # systemd namespace bash
-  local unit=$1
-  m sudo nsenter -t $(systemctl show --property MainPID --value $unit') -n -m sudo -u $USER -i bash
+  local unit pid
+  unit=$1
+  pid=$(servicepid $unit)
+  m sudo nsenter -t $pid -n -m sudo -u $USER -i bash
 }
 
-mailnnbash() {
-  m sudo nsenter -t $(systemctl show --property MainPID --value mailnn') -n -m sudo -u $USER -i bash
+sdncmd() { # systemd namespace cmd
+  local unit pid
+  unit=$1
+  shift
+  pid=$(servicepid $unit)
+  m sudo nsenter -t $pid -n -m sudo -u $USER -i "$@"
 }
 
-mailvpnbash() {
-  m sudo nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf") -n -m sudo -u $USER -i bash
+
+mailnnbash() {
+  sdnbash mailnn
 }
+
+# we use wireguard now, use mailnnbash.
+# mailvpnbash() {
+#   m sudo nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf") -n -m sudo -u $USER -i bash
+# }
+
 eximbash() {
-  m sudo nsenter -t $(pgrep -f "/usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf"|h1) -n -m sudo -u $USER -i bash
+  local pid
+  pid=$(pgrep -f "/usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf"|h1)
+  if [[ ! $pid ]]; then
+    echo "eximbash: failed to find exim pid. systemctl -n 30 status exim4:"
+    systemctl status exim4
+  fi
+  m sudo nsenter -t $pid -n -m
 }
 spamnn() {
   local spamdpid
@@ -1594,30 +1914,27 @@ unboundbash() {
   m sudo nsenter -t $(systemctl status unbound| sed -n '/^ *Main PID:/s/[^0-9]//gp') -n -m sudo -u $USER -i bash
 }
 
+nmtc() {
+  s nmtui-connect "$@"
+}
+
 mailnncheck() {
-  local p pid ns mailnn
+  local unit pid ns mailnn
   # mailvpn would belong on the list if using openvpn
-  for p in mailnn unbound dovecot spamassassin exim4 radicale; do
-    case $p in
-      exim4|radicale)
-        pid=$(ps -eo pid,cgroup | grep /system.slice/$p.service | awk '{print $1}')
-        ;;
-      *)
-        pid=$(s systemctl show --property MainPID --value $p)
-        ;;
-    esac
-    echo p=$p pid=$pid
+  for unit in mailnn unbound dovecot spamassassin exim4 radicale; do
+    pid=$(servicepid $unit)
+    echo debug: unit=$unit pid=$pid
     if [[ ! $pid ]]; then
-      echo failed to find pid for $p
+      echo failed to find pid for unit=$unit
       continue
     fi
     if ! ns=$(s readlink /proc/$pid/ns/net); then
-      echo failed to find ns for $p pid=$pid
+      echo failed to find ns for unit=$unit pid=$pid
       continue
     fi
     if [[  $mailnn ]]; then
       if [[ $ns != "$mailnn" ]]; then
-        echo "$p ns $ns != $mailnn"
+        echo "$unit ns $ns != $mailnn"
       fi
     else
       mailnn=$ns
@@ -1628,13 +1945,7 @@ mailnncheck() {
 
 
 vpncmd() {
-  m sudo -E env "PATH=$PATH" nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*client.conf") -n -m "$@"
-}
-vpnf() {
-  vpncmd sudo -E -u iank env "PATH=$PATH" abrowser -no-remote -P vpn & r
-}
-vpn2f() {
-  vpncmd sudo -u iank env "PATH=$PATH" abrowser -no-remote -P vpn2 & r
+  m sudo -E env "PATH=$PATH" nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*client.conf") -n "$@"
 }
 
 vpni() {
@@ -1666,6 +1977,11 @@ vpn() {
   sudo systemd-tty-ask-password-agent
 }
 
+fixu() {
+  ls -lad /run/user/1000
+  s chmod 700 /run/user/1000; s chown iank.iank /run/user/1000
+}
+
 # systemctl is-enabled / status / cat says nothing, instead theres
 # some obscure symlink. paths copied from man systemd.unit.
 # possibly also usefull, but incomplete, doesnt show units not loaded in memory:
@@ -1784,7 +2100,15 @@ if [[ -e $f ]]; then
   source $f
 fi
 
-
+electrum() {
+  # https://electrum.readthedocs.io/en/latest/tor.html
+  # https://github.com/spesmilo/electrum-docs/issues/129
+  s rsync -ptog --chown bitcoin:bitcoin ~/.Xauthority /var/lib/bitcoind/.Xauthority
+  sudo -u bitcoin DISPLAY=$DISPLAY XAUTHORITY=/var/lib/bitcoind/.Xauthority /a/opt/electrum-4.2.1-x86_64.AppImage -p socks5:localhost:9050
+}
+monero() {
+  sudo -u bitcoin DISPLAY=$DISPLAY XAUTHORITY=/var/lib/bitcoind/.Xauthority /a/opt/monero-gui-v0.17.3.2/monero-wallet-gui
+}
 
 
 reset-konsole() {
@@ -1811,6 +2135,12 @@ scrollbar true
 EOF
 }
 
+# make a page of links found in the files $@. redirect output
+linkhtml() {
+  gr -oh 'https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)' "$@" | \
+    rev | sort -u | rev | sed 's,.*,<a href="\0">\0</a><br\>,'
+}
+
 reset-xscreensaver() {
   # except for spash, i set these by setting gui options in
   # xscreensaver-command -demo
@@ -1840,6 +2170,7 @@ if [[ "$SUDOD" ]]; then
   unset SUDOD
 elif [[ -d /a ]] && [[ $PWD == "$HOME" ]] && [[ $- == *i* ]]; then
   cd /a
+  OLDPWD=
 fi
 
 
@@ -1869,7 +2200,9 @@ path-add /usr/local/go/bin
 # I have both because I was trying to solve an issue that
 # turned out to be unrelated.
 # ARDUINO_PATH=/a/opt/Arduino/build/linux/work
-export ARDUINO_PATH=/a/opt/arduino-1.8.15
+
+## i should have documented this...
+# based on https://github.com/keyboardio/Kaleidoscope
 export KALEIDOSCOPE_DIR=/a/opt/Kaleidoscope
 
 # They want to be added to the start, but i think
@@ -1881,7 +2214,9 @@ path-add --end $HOME/.cargo/bin
 
 if type -P rg &>/dev/null; then
   # --no-messages because of annoying errors on broken symlinks
-  rg() { command rg --no-messages -L -i -M 300 --no-ignore "$@" || return $?; }
+  # -z = search .gz etc files
+  # -. = search dotfilesq
+  rg() { command rg -. -z --no-messages -L -i -M 900 --no-ignore-parent --no-ignore-vcs -g '!.git' -g '!auto-save-list' -g '!.savehist' "$@" || return $?; }
   #fails if not exist. ignore
   complete -r rg 2>/dev/null ||:
 else