{"id":594,"date":"2009-11-12T02:56:48","date_gmt":"2009-11-12T07:56:48","guid":{"rendered":"http:\/\/g33kinfo.com\/info\/?p=594"},"modified":"2009-11-12T02:56:48","modified_gmt":"2009-11-12T07:56:48","slug":"bash-script-to-email-random-passwords-to-users","status":"publish","type":"post","link":"https:\/\/g33kinfo.com\/info\/bash-script-to-email-random-passwords-to-users\/","title":{"rendered":"Bash script to email random passwords to users"},"content":{"rendered":"

Here is a bash script to randomly generate a password and send it to a user’s email address. It will also write the user’s email address and password to a csv file for importing into your MySQL database via phpMyAdmin<\/a>.<\/p>\n

The script assume you have a text file (emails.txt) in your home directory with a list of email addresses to start with. You need never see the password if you don’t want to.<\/p>\n

shamelessly pulled from http:\/\/www.altfire.com\/main\/news\/index.php?news_id=371<\/p>\n

#! \/bin\/bash<\/p>\n

# characters allowed in our passwords
\ncharspool=(‘a’ ‘b’ ‘c’ ‘d’ ‘e’ ‘f’ ‘g’ ‘h’ ‘i’ ‘j’ ‘k’ ‘l’ ‘m’ ‘n’ ‘o’ ‘p’
\n‘q’ ‘r’ ‘s’ ‘t’ ‘u’ ‘v’ ‘w’ ‘x’ ‘y’ ‘z’ ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’
\n‘8’ ‘9’ ‘0’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’ ‘G’ ‘H’ ‘I’ ‘J’ ‘K’ ‘L’ ‘M’ ‘N’ ‘O’
\n‘P’ ‘Q’ ‘R’ ‘S’ ‘T’ ‘U’ ‘V’ ‘W’ ‘X’ ‘Y’ ‘Z’);<\/p>\n

len=$<\/p>\n

if [ $# -lt 1 ]; then
\nnum=6;
\nelse
\nnum=;
\nfi<\/p>\n

while read line<\/p>\n

do
\nfor c in $(seq $num); do
\npass=”$pass$”
\ndone<\/p>\n

# output the to the csv file
\n# modify path to YOUR home directory
\necho -e “$line,$pass” >> \/home\/username\/passwords.csv<\/p>\n

# email subject
\nSUBJECT=”Your Login Details”
\n# Email To ?
\nEMAIL=$line
\n# Email text\/message
\nEMAILMESSAGE=”\/tmp\/emailmessage.txt”<\/p>\n

echo “You can login to whatever using the following details:”>>$EMAILMESSAGE
\necho “”>>$EMAILMESSAGE
\necho “Email Address = $line”>>$EMAILMESSAGE
\necho “Password = $pass”>>$EMAILMESSAGE
\necho “”>>$EMAILMESSAGE
\necho “”>>$EMAILMESSAGE
\necho “”>>$EMAILMESSAGE
\necho “Signature or URL or whatever”>>$EMAILMESSAGE<\/p>\n

# send email using \/bin\/mail
\n#change sending email address to your own!
\n\/usr\/bin\/mail -s “$SUBJECT” “$EMAIL” — -f username@domain.com< $EMAILMESSAGE<\/p>\n

# reset password to go again
\npass=””<\/p>\n

# input file – modify path to YOUR home directory
\ndone <\/home\/username\/emails.txt<\/p>\n","protected":false},"excerpt":{"rendered":"

Here is a bash script to randomly generate a password and send it to a user’s email address. It will also write the user’s email address and password to a csv file for importing into your MySQL database via phpMyAdmin. The script assume you have a text file (emails.txt) in your home directory with a… <\/p>\n

Read More<\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-594","post","type-post","status-publish","format-standard","hentry","category-info"],"yoast_head":"\nBash script to email random passwords to users - Linux Shtuff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/g33kinfo.com\/info\/bash-script-to-email-random-passwords-to-users\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bash script to email random passwords to users - Linux Shtuff\" \/>\n<meta property=\"og:description\" content=\"Here is a bash script to randomly generate a password and send it to a user’s email address. 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