toolbox/edit-user-email.sh

   1 #!/bin/sh
   2
   3 if [ -z "$1" -o -z "$2" -o -z "$3" ]; then
   4         echo "Syntax: ./edit-user-email.sh <username> <old e-mail> <new e-mail>"
   5         exit 1
   6 fi
   7 ETC=$HOME/j/etc
   8 COUNT=`grep -E -c "^$1:" $ETC/passwd`
   9 if [ "$COUNT" -ne "1" ]; then
  10         echo "fatal: user '$1' doesn't appear to exist (or exist multiple times, or contain regexpy characters)."
  11         exit 1
  12 fi
  13 sed -i "s/^$1\(:[^:]*:[^:]*:[^:]*:\)$2:/$1\\1$3:/; t show; b; : show; w /dev/stderr" $ETC/passwd
  14 echo "All changed lines listed above."