1. Shell Programming and Scripting

Hi, I have a script as follows: #!/bin/sh nohup ./my_program >& /dev/null & However, i get a "Generated or received a file descriptor number that is not valid" whenever I run it. running the command up in prompt is ok though. if i change the first line to #!/bin/csh i get a then:... (4 Replies)

2. Shell Programming and Scripting

Working in a bash environment, in the following example, how do I direct the error message that putting in an invalid flag (-j for example) would normally produce to dev/null? while getopts "abcd" opt do case "$opt" in i) a etc ;; r) b etc ;; f) c etc ;; v) d... (7 Replies)

3. UNIX for Dummies Questions & Answers

Is it possible to redirect errors at the command line when you run the script such as bash scriptname & 2>/dev/null? (1 Reply)

4. Solaris

Hi, Anyone can help My solaris 8 system has the following /dev/null , /dev/tty and /dev/console All permission are lrwxrwxrwx Can this be change to a non-world write ?? any impact ?? (12 Replies)

5. Shell Programming and Scripting

Hi i am running oracle database import through a script and script scans the import log to see if there are any errors. Now the porblem is that when i run the script the import log appears on the screen even if i direct the output of import to /dev/null. imp "'/ as sysdba'"... (5 Replies)

6. UNIX for Dummies Questions & Answers

Hey, I'm completely new at this and I was wondering if there is a way that I would be able to redirect the log files in a directories standard output and standard error into and excel spreadsheet in anyway? Please remember don't use too advanced of terminology as I just started using shell... (6 Replies)

7. UNIX for Dummies Questions & Answers

How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&" echo "hello" > /dev/null 2>&1 echo "hello" > /dev/null 2>1 (3 Replies)

8. HP-UX

Hi Guru's, I am trying to test the network speed or load by this command. but getting error " Not Connected ". Could you guys please help. ftp> put "|dd if=/dev/zero bs=8k count=1000000" /dev/null Not connected. Please use code tags! (9 Replies)

9. Shell Programming and Scripting

I apologize if this question has been answered else where or is too elementary. I ran across a KSH script (long unimportant story) that does this: if ; then CAS_SRC_LOG="/var/log/cas_src.log 2>&1" else CAS_SRC_LOG="/dev/null 2>&1" fithen does this: /usr/bin/echo "heartbeat:... (5 Replies)

10. Shell Programming and Scripting

I'm using an text-to-speech synthesis in a script, and I need to redirect it's output to /dev/null how can I do that ? And how to redirect the stream to his normal output then （sound card ) ? thankx (2 Replies)