/dev/Null error Post: 302583774

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1. UNIX for Dummies Questions & Answers

>/dev/null

Maybe it's an stupid question but remeber... I'm Junior.. I use command line to run programs, and some of them gives a lot of information when, for example, you open a window or other actions. That's really bad because my terminal gets full of unwanted messages, so I use "bin file & >/dev/null"...

2. UNIX for Dummies Questions & Answers

/dev/null

Hi , I am importing some table from /dev/null i dont understand what is /dev/null Sorry i am new to UNIX sam71

3. Shell Programming and Scripting

error piping nohup to /dev/null

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. Solaris

What is /dev/tty /dev/null and /dev/console

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 ??

5. Shell Programming and Scripting

Error output of cat to /dev/null

Hello, I'm trying to send the error output of a 'cat' operation to /dev/null like this: cat /dirA/dirB/temp*.log > /dirA/dirB/final.log 2>/dev/null This works perfectly in a terminal, but not when placed in a script. If there are no files matching temp*.log the script outputs an error...

6. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

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

7. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

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:...

8. Shell Programming and Scripting

Help with /dev/null Please

Hello All and a Happy New year to yous guys. I'm running the below command on my AIX box and it keeps giving me the message that the file doesn't exist. I know the file don't exist, but I don't want to see the error. 2>/dev/null doesn't work. bash-3.00$ ls -l C* | wc -l 2>/dev/null ls:...

9. UNIX for Dummies Questions & Answers

Eliminate error message (/dev/null)?

I am trying to eliminate an error message from a script. This is the error message: find: stat() error /usr/openv/netbackup/db/images/KUMAX: No such file or directory if ]; then runthiscommand=`su nxadm -c "ssh -t $new3 exec /bin/sh -s">/tmp/filew3 2>/tmp/error.txt<<EOF ...

10. UNIX for Dummies Questions & Answers

Redirect Standard Error to /dev/null is not working.

Hello. When I run a .ksh that contains the command below, and there is no file available in the source location the "FILE_NAME_*.CSV not found" error is still being displayed. FILEN=$(ssh ${SOURCE_SERV} "cd ${SOURCE_LOCATION} ;ls ${FILES}") 2> /dev/null. This is interfering with the rest...

LEARN ABOUT OSF1

slattach

slattach(8)						      System Manager's Manual						       slattach(8)

NAME

       slattach - Attaches a serial line to a network interface

SYNOPSIS

       /usr/sbin/slattach [{+|-} {c|e|i}] ttyname [baudrate]

DESCRIPTION

       The  slattach  command  assigns	a tty line to a network interface, allowing terminal devices to communicate across a network.  The ttyname
       argument is the name of any valid tty device in /dev.  This can be either the full path name (for example, /dev/tty01) or the name in  /dev
       (for example, tty01).  The optional baudrate argument is used to set the speed of the connection.  The default speed is 9600 baud.

       The  tty  line is attached to the first available network interface (sl0, sl1, already be configured with the local and remote addresses of
       each end of the SLIP connection (see ifconfig(8)).

       Only a person with superuser authority can attach a network interface.

       To detach the interface, use the ifconfig interface_id down command after terminating the slattach process.  interface_id is the name  that
       is shown by the netstat command.

FLAGS

       Enables	(+) or disables (- TCP header compression.  Enables (+) or disables (- automatic TCP header compression. If enabled and the remote
       system is using TCP header compression, TCP header compression is automatically enabled on the local system.  If both local and remote sys-
       tems  have  enabled this flag, TCP header compression is not used. One system must force the use of TCP header compression.  Enables (+) or
       disables (- ICMP traffic suppression. If enabled, ICMP traffic (like that generated by ping(8)) is not allowed to pass over the	SLIP  con-
       nection.

       When  the  system  is  booted, all flags are initially disabled. Once a flag is enabled, it remains enabled until the system is rebooted or
       until another slattach command is issued with the flag disabled.

NOTES

       The slattach command requires the Serial Line Internet Protocol (SLIP), which the kernel must support.  If  making  a  SLIP  connection	to
       another	Tru64  UNIX  system,  both systems must run slattach. If making a SLIP connection to a system not running the Tru64 UNIX operating
       system, the other system must support the SLIP protocol.

EXAMPLES

       To attach a tty device to a network interface, enter: /usr/sbin/slattach /dev/tty01 4800 This command attaches tty01 to a network interface
       to be used by the Serial Line Internet Protocol (SLIP).	The connection speed is 4800 baud.

       To attach a tty device to a network interface at 19200 bits per second (bps), with TCP header compression enabled and ICMP traffic suppres-
       sion disabled, enter: /usr/sbin/slattach +c -i /dev/tty01 19200

FILES

       Specifies the command path Contains the slattach process ID

RELATED INFORMATION

       Commands: netstat(1), ifconfig(8)

       Specifications: SLIP is described in RFC1055.  TCP header compression is described in RFC1144.  delim off

																       slattach(8)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

>/dev/null

Discussion started by: piltrafa

2. UNIX for Dummies Questions & Answers

/dev/null

Discussion started by: sam71

3. Shell Programming and Scripting

error piping nohup to /dev/null

Discussion started by: mochi

4. Solaris

What is /dev/tty /dev/null and /dev/console

Discussion started by: civic2005