What does it mean for the file name to be shown with red background

Posted by user56614 on Super User See other posts from Super User or by user56614
Published on 2010-10-23T19:02:33Z Indexed on 2011/11/14 17:55 UTC
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linux

|

bash

I'm trying to install Cisco VPN client on Linux Ubuntu 10.04. The installer creates the directory, places all the necessary files in it, and then fails to launch the binary. I tried to launch it myself, the system rebukes me too. Closer inspection yields the following:

eugene@eugene-desktop:/opt/cisco/vpn/bin$ sudo chmod u+x vpnagentd 
eugene@eugene-desktop:/opt/cisco/vpn/bin$ ls -la
total 5124
drwxr-xr-x 2 root root    4096 2010-10-23 11:51 .
drwxr-xr-x 6 root root    4096 2010-10-23 11:51 ..
-rwxr-xr-x 1 root root 1607236 2010-10-23 11:51 vpn
-rwsr-xr-x 1 root root 1204692 2010-10-23 11:51 vpnagentd
-r--r--r-- 1 root root  697380 2010-10-23 11:51 vpndownloader.sh
-rwxr-xr-x 1 root root 1712708 2010-10-23 11:51 vpnui
-rwxr-xr-x 1 root root    3654 2010-10-23 11:51 vpn_uninstall.sh
eugene@eugene-desktop:/opt/cisco/vpn/bin$ ./vpnagentd 
bash: ./vpnagentd: No such file or directory
eugene@eugene-desktop:/opt/cisco/vpn/bin$ sudo ./vpnagentd 
sudo: unable to execute ./vpnagentd: No such file or directory

The file name "vpnagentd" is shown in white letters with red background. The other three executables are in green letters with black background, as expected.

Any ideas?

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