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cannot execute script while its permission is 'x'

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3

I have a script in the current dir, however, I cannot execute it given that:

1. the permission is -rwxr-xr-x
   


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


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   


5. I cannot execute it using ./script.sh, it gives me bash: ./script.sh: Permission denied
   

I'd like to know why is this happening and what the solution is? Thanks in advance.

linux bash shell

share|improve this question

edited 8 hours ago

Henry

asked 8 hours ago

HenryHenry

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3

I have a script in the current dir, however, I cannot execute it given that:

1. the permission is -rwxr-xr-x
   


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


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   


5. I cannot execute it using ./script.sh, it gives me bash: ./script.sh: Permission denied
   

I'd like to know why is this happening and what the solution is? Thanks in advance.

linux bash shell

share|improve this question

edited 8 hours ago

Henry

asked 8 hours ago

HenryHenry

11855 bronze badges

New contributor

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

add a comment | 

I have a script in the current dir, however, I cannot execute it given that:

1. the permission is -rwxr-xr-x
   


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


3. my shell is /bin/bash
   


4. I can execute it using bash script.sh
   


5. I cannot execute it using ./script.sh, it gives me bash: ./script.sh: Permission denied
   

I'd like to know why is this happening and what the solution is? Thanks in advance.

linux bash shell

share|improve this question

edited 8 hours ago

Henry

asked 8 hours ago

HenryHenry

11855 bronze badges

New contributor

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

share|improve this question

edited 8 hours ago

Henry

asked 8 hours ago

HenryHenry

11855 bronze badges

New contributor

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

share|improve this question

edited 8 hours ago

Henry

asked 8 hours ago

HenryHenry

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New contributor

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

asked 8 hours ago

HenryHenry

11855 bronze badges

New contributor

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

asked 8 hours ago

HenryHenry

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1 Answer
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4

• 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

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  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
  7 hours ago
  

  
  
  
  

add a comment | 

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4

• 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

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  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
  7 hours ago
  

  
  
  
  

add a comment | 

4

• 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

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  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
  7 hours ago
  

  
  
  
  

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

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

share|improve this answer

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges

answered 8 hours ago

grawitygrawity

253k3838 gold badges532532 silver badges595595 bronze badges