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6

I discovered this website called pwnedpasswords, where you can apparently check to see if your password's sha1 hash has been leaked somewhere. So I made a script to automate the process, here's my script:

#!/bin/bash



read -s -p "Input your password: " your_pw

echo

your_hash=$(printf "$your_pw"|sha1sum|tr '[:lower:]' '[:upper:]'|head -c40)

hash_head=$(printf "$your_hash"|head -c5)

hash_tail=$(printf "$your_hash"|tail -c35)



pwned_count=$(curl https://api.pwnedpasswords.com/range/${hash_head} 2> /dev/null|grep "${hash_tail}"|awk -F ':' '{print $2}')

echo "Your password has been pwned ${your_pw} times"

echo "Your password has been pwned ${pwned_count} times"

And I used as a test password 1, and this is the output:

[me@my_compuuter aaa8]$ ./was_your_password_pwned.sh

Input your password:

Your password has been pwned 1 times

 timesassword has been pwned 197972

Notice how when I echo "Your password has been pwned ${your_pw} times"
it gives me the correct format ($your_pw is just the password itself), but when I echo "Your password has been pwned ${pwned_count} times" it gives me this weird format where it takes the times from the end and somehow overlaps it in the beginning... I have no clue what's going on...

Can somebody figure it out?

bash

share|improve this question

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Next time when you see something like this, pipe the output to od or cat -A.
  
  – Weijun Zhou
  Mar 18 at 3:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Dupe unix.stackexchange.com/questions/312446/… and cross stackoverflow.com/questions/43837875/… (mine). bash can select characters without head or/and tail, and do case conversion without tr; awk can match like grep and do the CR removal; there are Qs on all of these.
  
  – dave_thompson_085
  Mar 18 at 4:49
  
  
  

  
  
  
  

add a comment | 

6

I discovered this website called pwnedpasswords, where you can apparently check to see if your password's sha1 hash has been leaked somewhere. So I made a script to automate the process, here's my script:

#!/bin/bash



read -s -p "Input your password: " your_pw

echo

your_hash=$(printf "$your_pw"|sha1sum|tr '[:lower:]' '[:upper:]'|head -c40)

hash_head=$(printf "$your_hash"|head -c5)

hash_tail=$(printf "$your_hash"|tail -c35)



pwned_count=$(curl https://api.pwnedpasswords.com/range/${hash_head} 2> /dev/null|grep "${hash_tail}"|awk -F ':' '{print $2}')

echo "Your password has been pwned ${your_pw} times"

echo "Your password has been pwned ${pwned_count} times"

And I used as a test password 1, and this is the output:

[me@my_compuuter aaa8]$ ./was_your_password_pwned.sh

Input your password:

Your password has been pwned 1 times

 timesassword has been pwned 197972

Notice how when I echo "Your password has been pwned ${your_pw} times"
it gives me the correct format ($your_pw is just the password itself), but when I echo "Your password has been pwned ${pwned_count} times" it gives me this weird format where it takes the times from the end and somehow overlaps it in the beginning... I have no clue what's going on...

Can somebody figure it out?

bash

share|improve this question

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Next time when you see something like this, pipe the output to od or cat -A.
  
  – Weijun Zhou
  Mar 18 at 3:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Dupe unix.stackexchange.com/questions/312446/… and cross stackoverflow.com/questions/43837875/… (mine). bash can select characters without head or/and tail, and do case conversion without tr; awk can match like grep and do the CR removal; there are Qs on all of these.
  
  – dave_thompson_085
  Mar 18 at 4:49
  
  
  

  
  
  
  

add a comment | 

I discovered this website called pwnedpasswords, where you can apparently check to see if your password's sha1 hash has been leaked somewhere. So I made a script to automate the process, here's my script:

#!/bin/bash



read -s -p "Input your password: " your_pw

echo

your_hash=$(printf "$your_pw"|sha1sum|tr '[:lower:]' '[:upper:]'|head -c40)

hash_head=$(printf "$your_hash"|head -c5)

hash_tail=$(printf "$your_hash"|tail -c35)



pwned_count=$(curl https://api.pwnedpasswords.com/range/${hash_head} 2> /dev/null|grep "${hash_tail}"|awk -F ':' '{print $2}')

echo "Your password has been pwned ${your_pw} times"

echo "Your password has been pwned ${pwned_count} times"

And I used as a test password 1, and this is the output:

[me@my_compuuter aaa8]$ ./was_your_password_pwned.sh

Input your password:

Your password has been pwned 1 times

 timesassword has been pwned 197972

Notice how when I echo "Your password has been pwned ${your_pw} times"
it gives me the correct format ($your_pw is just the password itself), but when I echo "Your password has been pwned ${pwned_count} times" it gives me this weird format where it takes the times from the end and somehow overlaps it in the beginning... I have no clue what's going on...

Can somebody figure it out?

bash

share|improve this question

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

#!/bin/bash



read -s -p "Input your password: " your_pw

echo

your_hash=$(printf "$your_pw"|sha1sum|tr '[:lower:]' '[:upper:]'|head -c40)

hash_head=$(printf "$your_hash"|head -c5)

hash_tail=$(printf "$your_hash"|tail -c35)



pwned_count=$(curl https://api.pwnedpasswords.com/range/${hash_head} 2> /dev/null|grep "${hash_tail}"|awk -F ':' '{print $2}')

echo "Your password has been pwned ${your_pw} times"

echo "Your password has been pwned ${pwned_count} times"

[me@my_compuuter aaa8]$ ./was_your_password_pwned.sh

Input your password:

Your password has been pwned 1 times

 timesassword has been pwned 197972

share|improve this question

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

share|improve this question

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

edited 1 hour ago

Rui F Ribeiro

42.5k1485146

asked Mar 17 at 19:07

user323587user323587

663

asked Mar 17 at 19:07

user323587user323587

663

1 Answer
1

active

oldest

votes

7

The list returned by that site has lines terminated by CR/LF. A CR (r) will move the caret/cursor to the beginning of the line:

printf 'good r times'

 times

share|improve this answer

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wow thanks! I just added |tr 'r' 'n' to the end of the pwned_count variable and now it works properly, thanks!
  
  – user323587
  Mar 17 at 19:23
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  @user323587, tr -d 'r' would be more common, it actually removes the carriage return. Changing it to a newline of course works in your case, too, since the command substitution removes all trailing newlines.
  
  – ilkkachu
  Mar 17 at 19:31
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Note use of CRLF line endings is common in Internet protocols, and in particular is required for content-type: text/plain in MIME (email, or news), see rfc2046 section 4.1.1. It not clear all MIME requirements should (or sometimes can) carry over to HTTP, but it is best to assume they do when there is no statement or clear evidence otherwise.
  
  – dave_thompson_085
  Mar 18 at 4:49
  

  
  
  
  

add a comment | 

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7

The list returned by that site has lines terminated by CR/LF. A CR (r) will move the caret/cursor to the beginning of the line:

printf 'good r times'

 times

share|improve this answer

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wow thanks! I just added |tr 'r' 'n' to the end of the pwned_count variable and now it works properly, thanks!
  
  – user323587
  Mar 17 at 19:23
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  @user323587, tr -d 'r' would be more common, it actually removes the carriage return. Changing it to a newline of course works in your case, too, since the command substitution removes all trailing newlines.
  
  – ilkkachu
  Mar 17 at 19:31
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Note use of CRLF line endings is common in Internet protocols, and in particular is required for content-type: text/plain in MIME (email, or news), see rfc2046 section 4.1.1. It not clear all MIME requirements should (or sometimes can) carry over to HTTP, but it is best to assume they do when there is no statement or clear evidence otherwise.
  
  – dave_thompson_085
  Mar 18 at 4:49
  

  
  
  
  

add a comment | 

7

The list returned by that site has lines terminated by CR/LF. A CR (r) will move the caret/cursor to the beginning of the line:

printf 'good r times'

 times

share|improve this answer

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wow thanks! I just added |tr 'r' 'n' to the end of the pwned_count variable and now it works properly, thanks!
  
  – user323587
  Mar 17 at 19:23
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  @user323587, tr -d 'r' would be more common, it actually removes the carriage return. Changing it to a newline of course works in your case, too, since the command substitution removes all trailing newlines.
  
  – ilkkachu
  Mar 17 at 19:31
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Note use of CRLF line endings is common in Internet protocols, and in particular is required for content-type: text/plain in MIME (email, or news), see rfc2046 section 4.1.1. It not clear all MIME requirements should (or sometimes can) carry over to HTTP, but it is best to assume they do when there is no statement or clear evidence otherwise.
  
  – dave_thompson_085
  Mar 18 at 4:49
  

  
  
  
  

add a comment | 

The list returned by that site has lines terminated by CR/LF. A CR (r) will move the caret/cursor to the beginning of the line:

printf 'good r times'

 times

share|improve this answer

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

printf 'good r times'

 times

share|improve this answer

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018

answered Mar 17 at 19:20

Uncle BillyUncle Billy

1,0018