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How can I use commands with sudo without changing owner of the files?

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4

2

When I use sudo to do some activities with files, these files change ownership.
How can I use commands with sudo without changing owner of the files?

Example file archivos35.sh is from apache but I use sed (with usr admin sudo)

$ ls -l
-rwxr-xrw-. 1 apache apache 181 Aug 5 11:56 archivos35.sh

User admin with sudo ---

sudo sed -i s/old/new/g archivos35.sh

But doing that command with sudo changes the owner of the file

$ ls -l
-rwxr-xrw-. 1 admin apache 181 Aug 5 11:56 archivos35.sh

How can I avoid using the command with sudo to change the owner of the file?
I just want to make changes to the file without modifying its owner.

sed sudo ownership

share|improve this question

edited 9 hours ago

muru

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Dok GusDok Gus

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  – Jim L.
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  By mistake I set it with 756. I shouldn't
  
  – Dok Gus
  7 hours ago
  

  
  
  
  

add a comment | 

4

2

When I use sudo to do some activities with files, these files change ownership.
How can I use commands with sudo without changing owner of the files?

Example file archivos35.sh is from apache but I use sed (with usr admin sudo)

$ ls -l
-rwxr-xrw-. 1 apache apache 181 Aug 5 11:56 archivos35.sh

User admin with sudo ---

sudo sed -i s/old/new/g archivos35.sh

But doing that command with sudo changes the owner of the file

$ ls -l
-rwxr-xrw-. 1 admin apache 181 Aug 5 11:56 archivos35.sh

How can I avoid using the command with sudo to change the owner of the file?
I just want to make changes to the file without modifying its owner.

sed sudo ownership

share|improve this question

edited 9 hours ago

muru

43.5k55 gold badges108108 silver badges180180 bronze badges

asked 9 hours ago

Dok GusDok Gus

2111 bronze badge

New contributor

Dok Gus is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Why is your script world-writeable?
  
  – Jim L.
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  By mistake I set it with 756. I shouldn't
  
  – Dok Gus
  7 hours ago
  

  
  
  
  

add a comment | 

When I use sudo to do some activities with files, these files change ownership.
How can I use commands with sudo without changing owner of the files?

Example file archivos35.sh is from apache but I use sed (with usr admin sudo)

$ ls -l
-rwxr-xrw-. 1 apache apache 181 Aug 5 11:56 archivos35.sh

User admin with sudo ---

sudo sed -i s/old/new/g archivos35.sh

But doing that command with sudo changes the owner of the file

$ ls -l
-rwxr-xrw-. 1 admin apache 181 Aug 5 11:56 archivos35.sh

How can I avoid using the command with sudo to change the owner of the file?
I just want to make changes to the file without modifying its owner.

sed sudo ownership

share|improve this question

edited 9 hours ago

muru

43.5k55 gold badges108108 silver badges180180 bronze badges

asked 9 hours ago

Dok GusDok Gus

2111 bronze badge

New contributor

Dok Gus is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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$ ls -l
-rwxr-xrw-. 1 apache apache 181 Aug 5 11:56 archivos35.sh

sudo sed -i s/old/new/g archivos35.sh

$ ls -l
-rwxr-xrw-. 1 admin apache 181 Aug 5 11:56 archivos35.sh

share|improve this question

edited 9 hours ago

muru

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asked 9 hours ago

Dok GusDok Gus

2111 bronze badge

New contributor

Dok Gus is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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share|improve this question

edited 9 hours ago

muru

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asked 9 hours ago

Dok GusDok Gus

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Dok Gus is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 9 hours ago

muru

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edited 9 hours ago

muru

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asked 9 hours ago

Dok GusDok Gus

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asked 9 hours ago

Dok GusDok Gus

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2 Answers
2

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5

If you need to use sudo to modify the file, then use it to switch to the right user. You don't need to switch to root, that's just the default. So, in your case, you'd want to do:

sudo -iu apache sed 's/old/new/g' archivos35.sh

That will run the sed command as the user apache.

share|improve this answer

edited 9 hours ago

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think you forgot the sed in your example.
  
  – David Yockey
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidYockey d'oh! So I did, thanks!
  
  – terdon♦
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. Now it turns out as I need.
  
  – Dok Gus
  8 hours ago
  

  
  
  
  

add a comment | 

0

You're not really changing the ownership of the file, rather you're removing the old file and creating a new one. When you do that the new file is created owned by the uid of the creator. To avoid this you must modify the file in place. Edit it using a text editor that saves by overwriting the original file in place. Or run your sed commands with output to a temp file and then copy the temp file over the original file.

share|improve this answer

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You would think that the -i option aka --in-place would actually modify inplace...
  
  – JShorthouse
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Whit The @teldon response, I managed to do what I need. with sed I modify the place without opening the file.
  
  – Dok Gus
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JShorthouse You'd think, but it doesn't, at least not everywhere.
  
  – Kyle Jones
  7 hours ago
  

  
  
  
  

add a comment | 

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5

If you need to use sudo to modify the file, then use it to switch to the right user. You don't need to switch to root, that's just the default. So, in your case, you'd want to do:

sudo -iu apache sed 's/old/new/g' archivos35.sh

That will run the sed command as the user apache.

share|improve this answer

edited 9 hours ago

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think you forgot the sed in your example.
  
  – David Yockey
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidYockey d'oh! So I did, thanks!
  
  – terdon♦
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. Now it turns out as I need.
  
  – Dok Gus
  8 hours ago
  

  
  
  
  

add a comment | 

5

If you need to use sudo to modify the file, then use it to switch to the right user. You don't need to switch to root, that's just the default. So, in your case, you'd want to do:

sudo -iu apache sed 's/old/new/g' archivos35.sh

That will run the sed command as the user apache.

share|improve this answer

edited 9 hours ago

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I think you forgot the sed in your example.
  
  – David Yockey
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidYockey d'oh! So I did, thanks!
  
  – terdon♦
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you. Now it turns out as I need.
  
  – Dok Gus
  8 hours ago
  

  
  
  
  

add a comment | 

If you need to use sudo to modify the file, then use it to switch to the right user. You don't need to switch to root, that's just the default. So, in your case, you'd want to do:

sudo -iu apache sed 's/old/new/g' archivos35.sh

That will run the sed command as the user apache.

share|improve this answer

edited 9 hours ago

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

sudo -iu apache sed 's/old/new/g' archivos35.sh

share|improve this answer

edited 9 hours ago

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

answered 9 hours ago

terdon♦terdon

140k3333 gold badges286286 silver badges464464 bronze badges

0

You're not really changing the ownership of the file, rather you're removing the old file and creating a new one. When you do that the new file is created owned by the uid of the creator. To avoid this you must modify the file in place. Edit it using a text editor that saves by overwriting the original file in place. Or run your sed commands with output to a temp file and then copy the temp file over the original file.

share|improve this answer

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You would think that the -i option aka --in-place would actually modify inplace...
  
  – JShorthouse
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Whit The @teldon response, I managed to do what I need. with sed I modify the place without opening the file.
  
  – Dok Gus
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JShorthouse You'd think, but it doesn't, at least not everywhere.
  
  – Kyle Jones
  7 hours ago
  

  
  
  
  

add a comment | 

0

You're not really changing the ownership of the file, rather you're removing the old file and creating a new one. When you do that the new file is created owned by the uid of the creator. To avoid this you must modify the file in place. Edit it using a text editor that saves by overwriting the original file in place. Or run your sed commands with output to a temp file and then copy the temp file over the original file.

share|improve this answer

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You would think that the -i option aka --in-place would actually modify inplace...
  
  – JShorthouse
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Whit The @teldon response, I managed to do what I need. with sed I modify the place without opening the file.
  
  – Dok Gus
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JShorthouse You'd think, but it doesn't, at least not everywhere.
  
  – Kyle Jones
  7 hours ago
  

  
  
  
  

add a comment | 

You're not really changing the ownership of the file, rather you're removing the old file and creating a new one. When you do that the new file is created owned by the uid of the creator. To avoid this you must modify the file in place. Edit it using a text editor that saves by overwriting the original file in place. Or run your sed commands with output to a temp file and then copy the temp file over the original file.

share|improve this answer

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

share|improve this answer

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges

answered 9 hours ago

Kyle JonesKyle Jones

12.1k22 gold badges3333 silver badges4949 bronze badges