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Awk to get all my regular users in shadow

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3

I have a script.

I want to get all my regular users from /etc/shadow e.g all users which second term in shadow file begins with $ or !$.

My pattern is

sudo getent shadow | awk -F: '$2 ~ /^$/ || /^!$/ print $1'

It doesn't work for now.

bash scripts

share|improve this question

edited 8 hours ago

Eliah Kagan

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asked 8 hours ago

danasodanaso

5755 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  does it have to be awk? :-)
  
  – Rinzwind
  8 hours ago
  

  
  
  
  

add a comment | 

3

I have a script.

I want to get all my regular users from /etc/shadow e.g all users which second term in shadow file begins with $ or !$.

My pattern is

sudo getent shadow | awk -F: '$2 ~ /^$/ || /^!$/ print $1'

It doesn't work for now.

bash scripts

share|improve this question

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  does it have to be awk? :-)
  
  – Rinzwind
  8 hours ago
  

  
  
  
  

add a comment | 

I have a script.

I want to get all my regular users from /etc/shadow e.g all users which second term in shadow file begins with $ or !$.

My pattern is

sudo getent shadow | awk -F: '$2 ~ /^$/ || /^!$/ print $1'

It doesn't work for now.

bash scripts

share|improve this question

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

sudo getent shadow | awk -F: '$2 ~ /^$/ || /^!$/ print $1'

share|improve this question

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

share|improve this question

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

edited 8 hours ago

Eliah Kagan

87.7k2222 gold badges243243 silver badges386386 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

asked 8 hours ago

danasodanaso

5755 bronze badges

2 Answers
2

active

oldest

votes

5

You need to escape the $, as it is a special char for "End of Line" much like ^ is "Beginning of Line".

sudo getent shadow | awk -F: '$2 ~ /^$/ || $2 ~ /^!$/ print $1'

share|improve this answer

edited 8 hours ago

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  +1 good catch :)
  
  – Rinzwind
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, it works. I just need to not include root user
  
  – danaso
  8 hours ago
  

  
  
  
  

add a comment | 

2

All users with a password set can be listed like this:

getent shadow | egrep '^[^:]*:[*!]:' -v | cut -f1 -d:

share|improve this answer

answered 8 hours ago

RinzwindRinzwind

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add a comment | 

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5

You need to escape the $, as it is a special char for "End of Line" much like ^ is "Beginning of Line".

sudo getent shadow | awk -F: '$2 ~ /^$/ || $2 ~ /^!$/ print $1'

share|improve this answer

edited 8 hours ago

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  +1 good catch :)
  
  – Rinzwind
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, it works. I just need to not include root user
  
  – danaso
  8 hours ago
  

  
  
  
  

add a comment | 

5

You need to escape the $, as it is a special char for "End of Line" much like ^ is "Beginning of Line".

sudo getent shadow | awk -F: '$2 ~ /^$/ || $2 ~ /^!$/ print $1'

share|improve this answer

edited 8 hours ago

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  +1 good catch :)
  
  – Rinzwind
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, it works. I just need to not include root user
  
  – danaso
  8 hours ago
  

  
  
  
  

add a comment | 

You need to escape the $, as it is a special char for "End of Line" much like ^ is "Beginning of Line".

sudo getent shadow | awk -F: '$2 ~ /^$/ || $2 ~ /^!$/ print $1'

share|improve this answer

edited 8 hours ago

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

sudo getent shadow | awk -F: '$2 ~ /^$/ || $2 ~ /^!$/ print $1'

share|improve this answer

edited 8 hours ago

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

answered 8 hours ago

pLumopLumo

10.4k2121 silver badges4848 bronze badges

2

All users with a password set can be listed like this:

getent shadow | egrep '^[^:]*:[*!]:' -v | cut -f1 -d:

share|improve this answer

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges

add a comment | 

2

All users with a password set can be listed like this:

getent shadow | egrep '^[^:]*:[*!]:' -v | cut -f1 -d:

share|improve this answer

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges

add a comment | 

All users with a password set can be listed like this:

getent shadow | egrep '^[^:]*:[*!]:' -v | cut -f1 -d:

share|improve this answer

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges

getent shadow | egrep '^[^:]*:[*!]:' -v | cut -f1 -d:

share|improve this answer

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges

answered 8 hours ago

RinzwindRinzwind

220k2929 gold badges425425 silver badges567567 bronze badges