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Cannot execute script while its permission is 'x'

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17

1

I have a script in the current directory, however, given that:

1. the permission is -rwxr-xr-x
   


2. the script has a shebang #!/bin/bash at the top of the file


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   

I cannot execute it using ./script.sh. It gives me:

bash: ./script.sh: Permission denied

Why is this happening and what is the solution?

linux bash shell

share|improve this question

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

add a comment | 

17

1

I have a script in the current directory, however, given that:

1. the permission is -rwxr-xr-x
   


2. the script has a shebang #!/bin/bash at the top of the file


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   

I cannot execute it using ./script.sh. It gives me:

bash: ./script.sh: Permission denied

Why is this happening and what is the solution?

linux bash shell

share|improve this question

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

add a comment | 

I have a script in the current directory, however, given that:

1. the permission is -rwxr-xr-x
   


2. the script has a shebang #!/bin/bash at the top of the file


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   

I cannot execute it using ./script.sh. It gives me:

bash: ./script.sh: Permission denied

Why is this happening and what is the solution?

linux bash shell

share|improve this question

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

share|improve this question

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

share|improve this question

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

edited Jun 25 at 22:02

Peter Mortensen

8,4661616 gold badges6161 silver badges8585 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

asked Jun 24 at 21:01

HenryHenry

18877 bronze badges

1 Answer
1

active

oldest

votes

20

• The execution is not allowed because the file is on a filesystem mounted with the "noexec" option. Use findmnt -u -T . to find out if that's the case. If you have root privileges, mount -o remount,exec <dir> should remove this option.




• The execution is not allowed by MAC policies (SELinux, SMACK, possibly AppArmor). Check the system logs, starting with journalctl -n 100 and dmesg. Bypassing this (if you're the administrator) depends on which MAC system is actually in use.

share|improve this answer

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Thank you, in my case it is noexec. I got confused, I have this disk mount as /home ext4 auto,exec,rw,async,user 0 2 in /etc/fstab, why is it noexec?
  
  – Henry
  Jun 24 at 21:28
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  Because you have the user option in there.
  
  – grawity
  Jun 25 at 14:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What is MAC (in this context)? Not MAC address, I presume(?).
  
  – Peter Mortensen
  Jun 25 at 22:03
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Mandatory Access Control
  
  – Dancrumb
  Jun 25 at 22:25
  

  
  
  
  

add a comment | 

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20

• The execution is not allowed because the file is on a filesystem mounted with the "noexec" option. Use findmnt -u -T . to find out if that's the case. If you have root privileges, mount -o remount,exec <dir> should remove this option.




• The execution is not allowed by MAC policies (SELinux, SMACK, possibly AppArmor). Check the system logs, starting with journalctl -n 100 and dmesg. Bypassing this (if you're the administrator) depends on which MAC system is actually in use.

share|improve this answer

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Thank you, in my case it is noexec. I got confused, I have this disk mount as /home ext4 auto,exec,rw,async,user 0 2 in /etc/fstab, why is it noexec?
  
  – Henry
  Jun 24 at 21:28
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  Because you have the user option in there.
  
  – grawity
  Jun 25 at 14:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What is MAC (in this context)? Not MAC address, I presume(?).
  
  – Peter Mortensen
  Jun 25 at 22:03
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Mandatory Access Control
  
  – Dancrumb
  Jun 25 at 22:25
  

  
  
  
  

add a comment | 

20

• The execution is not allowed because the file is on a filesystem mounted with the "noexec" option. Use findmnt -u -T . to find out if that's the case. If you have root privileges, mount -o remount,exec <dir> should remove this option.




• The execution is not allowed by MAC policies (SELinux, SMACK, possibly AppArmor). Check the system logs, starting with journalctl -n 100 and dmesg. Bypassing this (if you're the administrator) depends on which MAC system is actually in use.

share|improve this answer

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Thank you, in my case it is noexec. I got confused, I have this disk mount as /home ext4 auto,exec,rw,async,user 0 2 in /etc/fstab, why is it noexec?
  
  – Henry
  Jun 24 at 21:28
  

  
  
  
  


• 
  
  
  

  
  6
  

  
  
  
  
  
  

  
  
  Because you have the user option in there.
  
  – grawity
  Jun 25 at 14:15
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What is MAC (in this context)? Not MAC address, I presume(?).
  
  – Peter Mortensen
  Jun 25 at 22:03
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Mandatory Access Control
  
  – Dancrumb
  Jun 25 at 22:25
  

  
  
  
  

add a comment | 

• The execution is not allowed because the file is on a filesystem mounted with the "noexec" option. Use findmnt -u -T . to find out if that's the case. If you have root privileges, mount -o remount,exec <dir> should remove this option.




• The execution is not allowed by MAC policies (SELinux, SMACK, possibly AppArmor). Check the system logs, starting with journalctl -n 100 and dmesg. Bypassing this (if you're the administrator) depends on which MAC system is actually in use.

share|improve this answer

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

share|improve this answer

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

edited 9 hours ago

Moshe Katz

2,27222 gold badges1616 silver badges3434 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges

answered Jun 24 at 21:11

grawitygrawity

253k3838 gold badges534534 silver badges599599 bronze badges