I have to:
pipe ls, tr, and cut to output the size (in bytes) and name of all of the files/dirs in the current directory (including any hidden ones), with the size at the beginning of the line, followed by a single tab character, followed by the the filename.
I don't know what the point of... (2 Replies)
I am using pipes (specifically piping out) in Perl to put an array from one file into an array in a different file. I can't figure out how to transfer the array. I kow how to open the pipe : open (FILEHANDLE, "| file") or die~
but how do I transfer the array. I think it has something to do with... (1 Reply)
Hi
Long time since I did any shell scripting so please be gentle with me! :)
Just wanted to know whether it is possible to take the streaming output from a dvb card /dev/dvb/adapter0/ and using named pipes and tee to pass the outputs to mplayer and mencoder so as to watch and record a telly... (0 Replies)
All,
I am a UNIX novice with a question that I hope you can help me with.
I have a UNIX application called "Tole" that formats and displays specific information about customers. I can display the information for up to 30 customers by seperating customer IDs using commas in this format:
Tole -c... (3 Replies)
I have a piping question, I am trying to implement piping on my own shell and am having some trouble...esentially I am trying to make something to do command|command|command.
I can get it to work fine if the last pipe command is not forked, but executes in the shell and then exits..but I need it... (2 Replies)
Hi,
I need to use a double grep so to speak. I need to grep for a particular item say BOB and then for each successful result I need to grep for another item say SMITH.
I tried grep "BOB" filename | grep "SMITH"
but it does not seem to work.
I can achieve my desired result using an... (12 Replies)
Hi All,
I am trying to convert the below Csh code into Perl.
But i have the following error.
Can any expert help ?
Error:
ls: *tac: No such file or directory
Csh
set $ST_file = `ls -rt *$testid*st*|tail -1`;
Perl
my $ST_file = `ls -rt *$testid*st*|tail -1`; (10 Replies)
Hi everybody,
I have a big file with blast results (if you know what this means, otherwise look at it just as a text file with a specific form).
I am trying to extract some ids from within this file, which have certain parameters.
For example, some Of my IDs have the term 'No hit results'... (1 Reply)
Hi everybody,
I have a big file with blast results (if you know what this means, otherwise look at it just as a text file with a specific form).
I am trying to extract some ids from within this file, which have certain parameters.
For example, some Of my IDs have the term 'No hit results'... (6 Replies)
Hello,
I was trying to split a string to characters by perl oneliner.
echo "The quick brown fox jumps over the lazy dog" | perl -e 'split // ' But did not work as with bash script pipe:
echo "The quick brown fox jumps over the lazy dog" | fold -w1 | sort | uniq -ic 8
1 T
1... (6 Replies)
Discussion started by: yifangt
6 Replies
LEARN ABOUT DEBIAN
bfbtester
BFBTESTER(1) General Commands Manual BFBTESTER(1)NAME
bfbtester - Brute Force Binary Tester
SYNOPSIS
bfbtester [-htv] [-d level] [-r rejects] [-o out-file] [-x max-execs] -a|[-sme] files ...
DESCRIPTION
BFBTester is great for doing quick, proactive, security checks of binary programs. BFBTester will perform checks of single and multiple
argument command line overflows as well as environment variable overflows. BFBTester can also watch for tempfile creation activity to alert
the user of any programs using unsafe tempfile names. While BFBTester can not test all overflows in software, it is useful for detecting
initial mistakes that can red flag dangerous software.
OPTIONS
You must specify one or more of the following tests:
-s Single Argument Test.
-m Multiple Argument Test.
-e Environment Variable Test.
-a Selects all tests
Other options:
-h Print help.
-t Enable tempfile monitoring.
-v Print version string.
-d level
Set debug level (default = 0, max = 2).
-r rejects
Comma separated list of binaries to skip.
-o out-file
Output to out-file rather than stdout.
-x max-execs
Set maximum executables to run in parallel (default = 250).
file Specific binary or a directory of binaries to test.
OVERVIEW
You must specify at least one test to run and you must specify either a binary or a directory.
Executable selection is now done in one of several ways:
If the executable filename is specified with a leading slash (an absolute path), no selection is used and the supplied absolute filename is
used.
If there is no leading slash in the filename the selection is made in one of two ways (in this order):
1) Prepend file name with $PWD and test accesiblity
2) Search through $PATH and find first accessible executable The first one to succeed is the executable choosen.
If the filename found is a directory, we walk the directory (one level deep) looking for executable binaries.
Symbolic links are followed.
You can specify binaries to skip (useful when loading a whole directory) by using the -r option.
The following is a crash report:
*** Crash </usr/bin/patch> ***
args: -D [05120]
envs: (null)
Signal: 11 ( Segmentation fault )
Core? Yes
This means "/usr/bin/patch" crashed when fed with an "-D" and a word 5,120 characters long:
$ /usr/bin/patch -D AAA...5,120 characters...AAA
(Numbers in brackets mean replace with a word that many characters long)
BFBTester is very CPU intensive, and will open many files, so you probably don't want to run it on a production machine during it's busiest
period. Just a warning...
EXAMPLES
bfbtester -s /usr/bin
Run the single argument test on all binaries in folder /usr/bin.
bfbtester -ta patch traceroute
Run all tests against patch and traceroute and run the tempfile monitor.
bfbtester -a ./bfbtester
Tests bfbtester (provided it's in the same directory).
bfbtester -r kill /usr/bin/kill
Does nothing.
AUTHOR
This manual page was written by Karl Soderstrom <ks@debian.org>, for the Debian GNU/Linux system (but may be used by others).
januari 23, 2001 BFBTESTER(1)