toolbox/edit-user-email.sh

   1 #!/bin/sh
   2
   3 set -e
   4
   5 . @basedir@/shlib.sh
   6
   7 if [ -z "$1" -o -z "$2" -o -z "$3" ]; then
   8         echo "Syntax: ./edit-user-email.sh <username> <old e-mail> <new e-mail>"
   9         exit 1
  10 fi
  11 ETC="$cfg_chroot/etc"
  12 COUNT=`grep -E -c "^$1:" "$ETC/passwd"`
  13 if [ "$COUNT" -ne "1" ]; then
  14         echo "fatal: user '$1' doesn't appear to exist (or exists multiple times, or contains regexpy characters)."
  15         exit 1
  16 fi
  17 if echo "$2" | grep -q '[,:]'; then
  18         echo "fatal: e-mail '$2' has illegal characters ([,:])."
  19         exit 1
  20 fi
  21 if ! echo "$3" | grep -E -q '^[a-zA-Z0-9+._-]+@[a-zA-Z0-9.-]+$'; then
  22         echo "fatal: e-mail '$3' is not valid (^[a-zA-Z0-9+._-]+@[a-zA-Z0-9.-]+$)."
  23         exit 1
  24 fi
  25 sed \
  26         -e "s/^$1\(:[^:]*:[^:]*:[^:]*:\)$2\([,:]\)/$1\\1$3\\2/" \
  27         -e "t show" \
  28         -e "b" \
  29         -e ": show" \
  30         -e "w /dev/stderr" \
  31         "$ETC/passwd" > "$ETC/passwd.$$"
  32 mv -f "$ETC/passwd.$$" "$ETC/passwd"
  33 rm -f "$ETC/passwd.$$"
  34 if [ -n "$cfg_update_pwd_db" -a "$cfg_update_pwd_db" != "0" ]; then
  35         "$cfg_basedir/bin/update-pwd-db" "$ETC/passwd" "$1"
  36 fi
  37 echo "All changed lines listed above."