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1answer
45 views

How to find all files that consist only of null bytes (any number of them)

I need to find all the files on my hdd that conains only (any number of) NULL bytes. How can I do it on Windows machine. Or with Linux tools live CD? Background: Something has malformed a bunch ...
0
votes
0answers
24 views

Why is it not recommended to use zero in an id column in MySQL?

If you're building out a project from scratch, what are some reasons that one would not recommend using zero (0) in an id column for MySQL? Assuming that the MySQL database/server is in strict mode ...
1
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0answers
84 views

Windows Null not Working Correctly

GitHub for Windows is not working correctly, citing a /dev/null error. I have since discovered that Windows' null.sys and Null device may have something to do with it, as running dir > nul returns ...
0
votes
1answer
67 views

how to use Null is Batch script

I working on small program to update the configuration of small program, I'm new to batch script, user need to enter desired input to go to desired program and I have 5 set of programs with in the ...
0
votes
5answers
6k views

replace given char with ascii nul in notepad++

Tried extended search --> replace with \0 but does not seem to work. Instead it deletes all occurrences of the char. Could it be a bug ? NB : replacing with \n, \r\n and the like works in extended ...
2
votes
1answer
442 views

Excel formula return that pivot tables will handle like cleared cells?

What combination of techniques with cell formulas and pivot table configuration will enable the drill-down into the pivot table to only show rows containing the 'desireable' valued cells, ignoring the ...
1
vote
1answer
416 views

putty send null

Using Putty, how can someone send a null character, ie \0 I have seen control+@ but that doesnt seem to work. I'm trying to do manual SMTP AUTH: EHLO AUTH PLAIN username\0\0password
4
votes
1answer
112 views

Free space from files filled with 0 (null)

On Windows7 with NTFS filesystem - I have a bunch of files which contents are purely nulls (confirmed with text editor pspad). Is it possible that I can reclaim this space transparently? Meaning that ...
2
votes
2answers
537 views

Find files > 0 bytes in length that consist only of NUL in Debian/Ubuntu

After fsck'ing an ext4 drive that had been running in a QNAP nas without an fsck for about four years, I now have a number of files that seem but be the correct size (typically 8-12mib), but each byte ...
3
votes
4answers
5k views

Redirect stdout while a process is running — What is that process sending to /dev/null

I've run a command and redirected it's output via > /dev/null Now that it's been running significantly longer than I expected I want to see what it's doing. Is there a way to re-redirect the ...
2
votes
0answers
301 views

PDF form created with Adobe LiveCycle Designer 8.0 - Form checkboxes randomly submitted as null values

I have a data collection process where users complete a PDF form and then submit an xml data file of the form values via email. I've had nearly 600 files submitted - the process has worked exactly as ...
0
votes
1answer
484 views

Is it possible to add a null route to an Airport Extreme?

The Airport Extreme doesn't seem to have an IP access-control list (ACL) to block outbound access to a particular IP address. Is there any way to add a null route or a blackhole for a specific IP so ...
0
votes
0answers
196 views

Restart from computer freezing reveals last working files filled with Nulls

My Windows 7 locked up while I was on hacking some code on Notepad++ and after forcing a restart, I find the files I was working on last to be filled entirely with nulls. I'm pretty sure this file ...
4
votes
2answers
4k views

How can i write the null character on a macbook pro?

How can i write a null character on a macbook pro? Preferably using just the keyboard or something that i can reach everywhere, without using a 3rd party program.
3
votes
2answers
452 views

Graphical Equivalent to /dev/null?

I'm trying to run a GTK-based plotting library that I wrote over an SSH terminal that's too slow to run an X session over. GTK assumes that a graphical display is present and won't work otherwise. ...
4
votes
1answer
2k views

Excel 2007 - How can I write “use this cell” or IF BLANK “use this cell”?

I am trying to show the Days between NOW() and the dates (dd/mm/yy) in, either Column B or Column C - depending which one is NOT blank A B C 29/03/10 01/04/10 29/03/10 ...
7
votes
7answers
3k views

Being that /dev/null is a pseudo-device, i.e. not physical, represented by a special file why I can move stuff there?

I allways tough about /dev/null being a black hole, in the way that all data I send there will not be echoed back. However there's some problem with the definition of /dev/null. According to wikipedia ...
9
votes
4answers
26k views

How to Insert a Null Character (ASCII 00) in Notepad?

I want to insert a null character (ASCII Value 00) into an open file in Notepad. A program that is reading this file is expecting 00 at the end, but it's getting the ASCII value for space - 20. How ...