With bash-script (ubunto server) I'm trying to read a binary file and, for each character, give back its ascii code (including extended ascii). For example:
To load the binary file into a variable I tried in this way:
and for finding its length:
However, $s does not seem to correspond to the actual content of the file and therefore also the length.
The exact number of characters I get in fact doing:
What I do not get is $s to match character for character the content of BinaryFile.
The equivalent vb6 works this way:
I also tried to work with hexdump ...
but I can not print the ascii code (extended) characters in the file.
If the variable $s contain the exact text of the file, I could use the following functions to get each character its ascii code (which is what I need).
Here is what I did . . . . I FTP'd several *.pdf files from a web site to a UNIX server, and did not set the transfer mode to BIN, now Adobe thinks that the documents are corrupted. Is there a way to convert the *.pdf files to Binary so that Adobe can open them again. I would just re-download... (2 Replies)
Friends,
I've tried on solaris, but I could n't get ascii data
dd if=binaryinputfile bs=1 skip=3800 count=4 | od -t u4
output :
INDBU3:/usr/users/FTAMUSER/kk $
dd if=SMP20041006173649188151 bs=1 skip=3800 count=4 | od -t u4
4+0 records in
4+0 records out
0000000 0000000000
0000004... (4 Replies)
I want to verify the file is Binary or ascii file and accordingly I want to switch the program with ret code
ie 0 or success and 1 for failure
Can any one help me is this a correct syntex...i am getting error
#!/bin/ksh
$file filename
if
echo "ascii fie Found"
else
echo " binary... (6 Replies)
hi
i am receiving a file from one system , i have to verify the format of the file data i.e whether the data is in acii format or binary format,
please help
thanks in advance
satya (1 Reply)
Hi,
Is there a way to convert the binary file to ascii . the binary file is pipe delimited.
from source the file(pipe delimited) is ftped to mainframe and from mainframe it is ftped to the unix box using binary format. Is there a way to change it back to ascii and view it?
Thanks! (3 Replies)
Hello all,
I am working with ftp servers in unix, and always I have to get and put files but I don't know exactly if I have to get or put them as an ascii or binary. Some files that I use are: .txt, .sav, .fmb, .pct, .sh, .ksh, .dat, .log.
Somebody can tell me what is the difference between... (2 Replies)
Hi,
I have got a library file, created by compiling C code. The file information with "file" command, gives it a "application/x-archive" type file. I want to extract the release string of my software from this file, so that i can know which version of C files were used to create the lib.
Can... (3 Replies)
Good evening, everybody
A good math friend told me that it would be possible to shrink the size of the numerical datas I produce with a physical simulation code I programmed for my PhD.
It usually writes at least 100 GB to complete the simulation, and it seems that it is too high. There are... (7 Replies)
Dears,
I need help to convert the binary file into ASCII format.
Actually we have CDRs which is generated by telecom switch at this is in ASN1 format or binary format, I need to convert those binary formatted file into ASCII format using Perl, or shell scripting.
Is there any way to solve... (3 Replies)
<Any suggestion how to create a file where the values are separated by ASCII code 1,with data extracted from a table using shell script The format is :/>
<columnname1(binary1)columnvalue(binary1)columnname2(binary1)columnvalue(binary1)columnname3(binary1)columnvalue... 1st row/>... (6 Replies)
Discussion started by: dasun
6 Replies
LEARN ABOUT POSIX
ascii
ASCII(1) Development Tools ASCII(1)NAME
ascii - report character aliases
SYNOPSIS
ascii [-dxohv] [-t] [char-alias...]
OPTIONS
Called with no options, ascii behaves like `ascii -h'. Options are as follows:
-t
Script-friendly mode, emits only ISO/decimal/hex/octal/binary encodings of the character.
-s
Parse multiple characters. Convenient way of parsing strings.
-d
Ascii table in decimal.
-x
Ascii table in hex.
-o
Ascii table in octal.
-h, -?
Show summary of options and a simple ASCII table.
-v
Show version of program.
DESCRIPTION
Characters in the ASCII set can have many aliases, depending on context. A character's possible names include:
*
Its bit pattern (binary representation).
*
Its hex, decimal and octal representations.
*
Its teletype mnemonic and caret-notation form (for control chars).
*
Its backlash-escape form in C (for some control chars).
*
Its printed form (for printables).
*
Its full ISO official name in English.
*
Its ISO/ECMA code table reference.
*
Its name as an HTML/SGML entity.
*
Slang and other names in wide use for it among hackers.
This utility accepts command-line strings and tries to interpret them as one of the above. When it finds a value, it prints all of the
names of the character. The constructs in the following list can be used to specify character values. If an argument could be interpreted
in two or more ways, names for all the different characters it might be are dumped.
character
Any character not described by one of the following conventions represents the character itself.
^character
A caret followed by a character.
character
A backslash followed by certain special characters (abfnrtv).
mnemonic
An ASCII teletype mnemonic.
hexadecimal
A hexadecimal (hex) sequence consists of one or two case-insensitive hex digit characters (01234567890abcdef). To ensure hex
interpretation use hexh, 0xhex, xhex or xhex.
decimal
A decimal sequence consists of one, two or three decimal digit characters (0123456789). To ensure decimal interpretation use
ddecimal, ddecimal, or ddecimal.
octal
An octal sequence consists of one, two or three octal digit characters (01234567). To ensure octal interpretation use octal, 0ooctal,
ooctal, or ooctal.
bit pattern
A bit pattern (binary) sequence consists of one to eight binary digit characters (01). To ensure bit interpretation use 0bbit pattern,
bbit pattern or bit pattern.
ISO/ECMA code
A ISO/ECMA code sequence consists of one or two decimal digit characters, a slash, and one or two decimal digit characters.
name
An official ASCII or slang name.
The slang names recognized and printed out are from a rather comprehensive list that first appeared on USENET in early 1990 and has been
continuously updated since. Mnemonics recognized and printed include the official ASCII set, some official ISO names (where those differ)
and a few common-use alternatives (such as NL for LF). HTML/SGML entity names are also printed when applicable. All comparisons are
case-insensitive, and dashes are mapped to spaces. Any unrecognized arguments or out of range values are silently ignored. Note that the -s
option will not recognize 'long' names, as it cannot differentiate them from other parts of the string.
For correct results, be careful to stringize or quote shell metacharacters in arguments (especially backslash).
This utility is particularly handy for interpreting cc(1)'s ugly octal `invalid-character' messages, or when coding anything to do with
serial communications. As a side effect it serves as a handy base-converter for random 8-bit values.
AUTHOR
Eric S. Raymond esr@snark.thyrsus.com; November 1990 (home page at http://www.catb.org/~esr/). Reproduce, use, and modify as you like as
long as you don't remove this authorship notice. Ioannis E. Tambouras <ioannis@debian.org> added command options and minor enhancements.
Brian J. Ginsbach <ginsbach@sgi.com> fixed several bugs and expanded the man page. David N. Welton <davidw@efn.org> added the -s option.
Matej Vela corrected the ISO names. Dave Capella contributed the idea of listing HTML/SGML entities.
ascii 03/26/2011 ASCII(1)