David C. Rankin wrote: <snip>
I get this new message:
[00:08 archangel:/etc] # noc fstab bash: /usr/local/bin/noc: /bin/bash: bad interpreter: Text file busy
<snip>
Text file busy?? It's a text file, it's not busy, it's either saved or you get what was present the last time it was saved, but it certainly isn't busy.
<snip> "Text file busy" is not related with text files :) Text refers to the "text section" of the executable. The text section of an executable is where the code resides, in other words the real program. This message appears when a process is running and you try to overwrite it, for example: [root@gerardo ~]# lsof -n | grep "sbin/init" init 1 root txt REG 8,1 31352 1079262 /sbin/init <<< note the 'txt' at 4th field. [root@gerardo ~]# echo 'hola' > /sbin/init -bash: /sbin/init: Text file busy But in this case is different, you are open(2) a file in read/write mode (O_RDWR), and you tried to execute it execve(2). This is impossible. Again lsof help to view this: [djgera@gerardo ~]$ vi coco.sh [djgera@gerardo ~]$ lsof -n | grep coco.sh vi 4127 djgera 4uW REG 8,6 32 113481 /home/djgera/coco.sh #### see the 'W' in 4th field. [djgera@gerardo ~]$ ./coco.sh bash: ./coco.sh: /bin/bash: bad interpreter: Text file busy Another simple example: [djgera@gerardo ~]$ cat coco.sh #!/bin/bash echo "Hola mundo!" [djgera@gerardo ~]$ cat coco.c #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #define __USE_GNU #include <fcntl.h> int main(int argc, char *argv[]) { int coco; coco = open("./coco.sh", O_RDWR); sleep(60); close(coco); return(0); } [djgera@gerardo ~]$ gcc coco.c -o coco [djgera@gerardo ~]$ ./coco & [1] 4234 [djgera@gerardo ~]$ lsof -n | grep coco.sh coco 4234 djgera 3u REG 8,6 32 113481 /home/djgera/coco.sh #### See the 'u' in 4th field. [djgera@gerardo ~]$ ./coco.sh bash: ./coco.sh: /bin/bash: bad interpreter: Text file busy Good Luck! (sorry my english) -- Gerardo Exequiel Pozzi ( djgera ) http://www.djgera.com.ar KeyID: 0x1B8C330D Key fingerprint = 0CAA D5D4 CD85 4434 A219 76ED 39AB 221B 1B8C 330D