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How to check if a new username is a system user?
A command to list all users? And how to add, delete, modify users?Command to list all users with their UID?How to find out who is using the physical console?How to stock all files with the same suffix into a table?Using grep in /etc/passwd to fetch list of users and system users, discriminating both~ as directory nameWhen I use Bash on Ubuntu on Windows (Ubuntu built into Windows 10), where is my Windows root filesystem (e.g. C drive)?Locked out of sudo in main host after firejail sandboxingHow to get BASH to use * wildcard in command?Restrict user from changing to a directory outside of /home/usernameSharing files with Win10/bash shellExecute python3 filename after creating new user and with skeleton folder
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I want to create a script that change a username.
I want to check if the user is not a system user.
My idea is to check /etc/passwd and pick only users with an ID between 1000 and 60000 and users that have a /home directory like
user:x:1005:1021::/home/user:/bin/sh
My grep command for now is like
egrep -E '1[0-9]3.*/home' /etc/passwd
As you can see, it doesn't match my [1000-60000] pattern nor the name
command-line
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
I want to create a script that change a username.
I want to check if the user is not a system user.
My idea is to check /etc/passwd and pick only users with an ID between 1000 and 60000 and users that have a /home directory like
user:x:1005:1021::/home/user:/bin/sh
My grep command for now is like
egrep -E '1[0-9]3.*/home' /etc/passwd
As you can see, it doesn't match my [1000-60000] pattern nor the name
command-line
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Minor point:grep -Eis the same thing asegrep. There's no point in using both (egrep -E), just usegrep -E.
– terdon♦
9 hours ago
add a comment |
I want to create a script that change a username.
I want to check if the user is not a system user.
My idea is to check /etc/passwd and pick only users with an ID between 1000 and 60000 and users that have a /home directory like
user:x:1005:1021::/home/user:/bin/sh
My grep command for now is like
egrep -E '1[0-9]3.*/home' /etc/passwd
As you can see, it doesn't match my [1000-60000] pattern nor the name
command-line
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I want to create a script that change a username.
I want to check if the user is not a system user.
My idea is to check /etc/passwd and pick only users with an ID between 1000 and 60000 and users that have a /home directory like
user:x:1005:1021::/home/user:/bin/sh
My grep command for now is like
egrep -E '1[0-9]3.*/home' /etc/passwd
As you can see, it doesn't match my [1000-60000] pattern nor the name
command-line
command-line
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
danasodanaso
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
danasodanaso
182 bronze badges
asked 9 hours ago
danasodanaso
182 bronze badges
182 bronze badges
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
danaso is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Minor point:grep -Eis the same thing asegrep. There's no point in using both (egrep -E), just usegrep -E.
– terdon♦
9 hours ago
add a comment |
Minor point:grep -Eis the same thing asegrep. There's no point in using both (egrep -E), just usegrep -E.
– terdon♦
9 hours ago
Minor point:
grep -E is the same thing as egrep. There's no point in using both (egrep -E), just use grep -E.– terdon♦
9 hours ago
Minor point:
grep -E is the same thing as egrep. There's no point in using both (egrep -E), just use grep -E.– terdon♦
9 hours ago
add a comment |
1 Answer
1
active
oldest
votes
You can use awk to find local users with id >= 1000:
awk -F: '$3>=1000 && $3!=65534 print $1' /etc/passwd
To also check for a home folder below /home:
awk -F: '$3>=1000 && $3 != 65534 && $6 ~ /^/home/ print $1' /etc/passwd
Replace /etc/passwd with <(getent passwd) to list all users including network accounts ...
See also this related question, as well as this one.
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use awk to find local users with id >= 1000:
awk -F: '$3>=1000 && $3!=65534 print $1' /etc/passwd
To also check for a home folder below /home:
awk -F: '$3>=1000 && $3 != 65534 && $6 ~ /^/home/ print $1' /etc/passwd
Replace /etc/passwd with <(getent passwd) to list all users including network accounts ...
See also this related question, as well as this one.
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
add a comment |
You can use awk to find local users with id >= 1000:
awk -F: '$3>=1000 && $3!=65534 print $1' /etc/passwd
To also check for a home folder below /home:
awk -F: '$3>=1000 && $3 != 65534 && $6 ~ /^/home/ print $1' /etc/passwd
Replace /etc/passwd with <(getent passwd) to list all users including network accounts ...
See also this related question, as well as this one.
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
add a comment |
You can use awk to find local users with id >= 1000:
awk -F: '$3>=1000 && $3!=65534 print $1' /etc/passwd
To also check for a home folder below /home:
awk -F: '$3>=1000 && $3 != 65534 && $6 ~ /^/home/ print $1' /etc/passwd
Replace /etc/passwd with <(getent passwd) to list all users including network accounts ...
See also this related question, as well as this one.
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
You can use awk to find local users with id >= 1000:
awk -F: '$3>=1000 && $3!=65534 print $1' /etc/passwd
To also check for a home folder below /home:
awk -F: '$3>=1000 && $3 != 65534 && $6 ~ /^/home/ print $1' /etc/passwd
Replace /etc/passwd with <(getent passwd) to list all users including network accounts ...
See also this related question, as well as this one.
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
edited 9 hours ago
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
answered 9 hours ago
pLumopLumo
10k21 silver badges48 bronze badges
10k21 silver badges48 bronze badges
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
add a comment |
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
Thanks! but how can I merge all my patterns e.g name + ID + /home?
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
You're amazing! thanks!
– danaso
9 hours ago
2
2
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Mind that this does not list LDAP users so is only useable for local users :)
– Rinzwind
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
Thanks @Rinzwind. I didn't know
– danaso
9 hours ago
add a comment |
danaso is a new contributor. Be nice, and check out our Code of Conduct.
danaso is a new contributor. Be nice, and check out our Code of Conduct.
danaso is a new contributor. Be nice, and check out our Code of Conduct.
danaso is a new contributor. Be nice, and check out our Code of Conduct.
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Minor point:
grep -Eis the same thing asegrep. There's no point in using both (egrep -E), just usegrep -E.– terdon♦
9 hours ago