I have a task that says: make a file (called binaryfile ) that contains
4 bytes of NULL data
...
For the first 2, I can used :
dd if=/dev/null of=binaryfile bs=8 count =4 and
No, you need to use /dev/zero. This will not output anything no matter how many bytes you ask it to. For the subsequent tasks, you output dd to a filter which will convert the 0's to whatever:
please let me know
how can i mail the binary files
is it can be done thru pine?
is there any other way to do it?
wat are the changes in system i have to make
and one more thing
i am sending data to a message queue and then retriving the data from the queue
but when i do the ipcs... (1 Reply)
Hi,
I have two Solaris machines.
1. SunOS X 5.8 Generic_108528-29 sun4u sparc SUNW,Sun-Blade-1500
2. SunOS Y 5.8 Generic_108528-13 sun4u sparc SUNW,Ultra-60
I am trying to buiild a project on both these machines. The Binary output file compiled on machine 2 runs on both the machines. Where... (0 Replies)
Hi all
I have a C program to write it's output into a textfile which is also created by the program in between. The file that's get created prompt's a message while opening manually that the file is binary and any change in that leads to it's corruption.
I have used putc() to write the output... (2 Replies)
Hi,
I wrote a small script whose function is to execute the postemsg provided if the threshold breaches.
I want to log this postemsg messages to a log file. But I am not able to do. Can someone throw some light on how to log the output of this. I am pasting a snippet of that code.
... (2 Replies)
I am using grep to match a pattern, but the output is strange.
$ grep -r -o "pattern" *
Gives me:
Binary file foo1 matches
Binary file foo2 matches
Binary file foo3 matches
To find the lines before/after, I then have to use the following on each file:
$ strings foo1 | grep -A1 -B1... (0 Replies)
Hello,
Can I copy a binary file while the file is being written to by another process?
Another process (program) “P1” creates and opens (for writing) binary file “ABC” on local disk. Process P1 continuously write into ABC file every couple of seconds, adding 512-byte blocks of data. ABC file... (1 Reply)
I am struck up with a problem and that is with output redirection.
I used all the ways for the redirection of the output of c binary to a file, still it is failing.
Here are the different ways which I have used:
./a.out | tee -a /root/tmp.txt 2>&1
./a.out | tee -a /root/tmp.txt 1>&1
./a.out |... (2 Replies)
Hello guys,
We had to move from a DC to another, and we are now facing an "issue" with some text files.
Looks like that some of our log files are set as binary:
file TuxConnectorURA.20121012
TuxConnectorURA.20121012: data or International Language text
less TuxConnectorURA.20121012... (2 Replies)
Hello *nix specialists,
Im working for a non profit organisation in Germany to transport DSL over WLAN to people in areas without no DSL. We are using Linksys WRT 54 router with DD-WRT firmware There are at the moment over 180 router running but we have to change some settings next time. So my... (7 Replies)
Discussion started by: digidax
7 Replies
LEARN ABOUT OSX
mkdevmaps
mkdevmaps(1M) System Administration Commands mkdevmaps(1M)NAME
mkdevmaps - make device_maps entries
SYNOPSIS
/usr/sbin/mkdevmaps
DESCRIPTION
The mkdevmaps command writes to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
media devices.
The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.
Entries are generated based on the device special files found in /dev. For the different categories of devices, the mkdevmaps command
checks for the following files under /dev:
audio /dev/audio, /dev/audioctl, /dev/sound/...
tape /dev/rst*, /dev/nrst*, /dev/rmt/...
floppy /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
removable disk /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
frame buffer /dev/fb
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Obsolete |
+-----------------------------+-----------------------------+
SEE ALSO allocate(1), bsmconv(1M), attributes(5)NOTES
mkdevmaps might not be supported in a future release of the Solaris operating system.
SunOS 5.10 8 Oct 2003 mkdevmaps(1M)