03-25-2008
Hi.
Quote:
unpack TEMPLATE,EXPR
"unpack" does the reverse of "pack": it takes a string and
expands it out into a list of values. (In scalar context, it
returns merely the first value produced.)
The string is broken into chunks described by the TEMPLATE.
Each chunk is converted separately to a value. Typically,
either the string is a result of "pack", or the bytes of the
string represent a C structure of some kind.
-- excerpt from perldoc -f unpack
I have used this to process a graphics mixed text and binary file. In general, it's best to know the exact layout, although it might be interesting to try doing some auto-recognition of the pieces.
Best wishes ... cheers, drl
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
:) Hi
i am trying to convert a file which is in UTF8 format to ANSI format i tried to use the function ICONV but it is throwing error
Function i used it as
$ iconv -f UTF8 -t ANSI filename
Error iam getting is NOT Supported UTF8 to ANSI
please some help me out on this.........Let me... (1 Reply)
Discussion started by: rajreddy
1 Replies
2. UNIX for Dummies Questions & Answers
:confused: Hi
i am trying to convert a file which is in UTF8 format to ANSI format i tried to use the function ICONV but it is throwing error
Function i used it as
$ iconv -f UTF8 -t ANSI filename
Error iam getting is NOT Supported UTF8 to ANSI
please some help me out on... (9 Replies)
Discussion started by: rajreddy
9 Replies
3. HP-UX
Hi,
Files coming to mailbox are in readable format?
Is there any special command to read these files.
suppose i have sent a file like this
megh$mailx -s "mesg" xyz@server.domain<file1.dat
can xyz directly read the file from his mailbox? (1 Reply)
Discussion started by: megh
1 Replies
4. Shell Programming and Scripting
Dear Experts,
I need your help to convert a unix date and time format number in to readable format like dd/mm/yyyy .
I have a text file of more than 10,000 records and it is like
NAME DATE1 COUNTRY DATE2
ABD 1223580395699 USA 1223580395699... (3 Replies)
Discussion started by: shary
3 Replies
5. UNIX for Dummies Questions & Answers
Hi All,
Is there any way to convert a file which is in UNIX format to a PC format....
Flip command can be used , apart form this command can we have any other way.... like usinf "awk" etc ..... main purpose of not using flip is that my Kshell doesnot support this comamnd.... (1 Reply)
Discussion started by: Samtel
1 Replies
6. Shell Programming and Scripting
Hi All,
Is there any way to convert a file which is in UNIX format to a PC format....
Flip command can be used , apart form this command can we have any other way.... like usinf "awk" etc ..... main purpose of not using flip is that my Kshell doesnot support this comamnd.... (2 Replies)
Discussion started by: Samtel
2 Replies
7. Shell Programming and Scripting
Hello
I have log file from solaris system which has date field converted by Java application using System.currentTimeMillis() function, example is 1280943608380 which equivalent to GMT: Wed, 04 Aug 2010 17:40:08 GMT.
Now I need a function in shell script which will convert 1280943608380... (3 Replies)
Discussion started by: Yaminib
3 Replies
8. Shell Programming and Scripting
Hello Experts,
Below is the record i have:
sample data attached
I want this record of each row to be in single line and there are multiple rowise unixtime mentioned e.g 11996327 , This needs to be converted to Human readdable data and time from multiple rows
Can you help me , it will be... (10 Replies)
Discussion started by: manishK
10 Replies
9. Shell Programming and Scripting
Can someone help me to write a shell script to convert epoch timestamp into human readable format
1394553600,"test","79799776.0","19073982.728571","77547576.0","18835699.285714"
1394553600,"test1","80156064.0","19191275.014286","62475360.000000","14200554.720000"... (10 Replies)
Discussion started by: Moon1234
10 Replies
10. Shell Programming and Scripting
Hello I have a file : file1.txt with the below contents :
237176 test1 test2 1442149024
237138 test3 test4 1442121300
237171 test5 test7 1442112823
237145 test9 test10 1442109600
In the above file fourth field represents the timestamp in Unix format.
I found a command which converts... (6 Replies)
Discussion started by: rahul2662
6 Replies
CDTOA(1) General Commands Manual CDTOA(1)
NAME
cdtoa - To convert the binary format of a dictionary back to
text format.
SYNOPSIS
cdtoa [-n] [-s] [-z] [-e] [-E] infilename
[-h cixingfile ] [ usagefreqfile ]
DEFAULT PATH
/usr/local/bin/cWnn4/cdtoa
DESCRIPTION
To convert the binary format of the dictionary to text
format, and output to standard output(stdout).
infilename is the name of the input binary format
dictionary.
The output may be piped into a file by using the ">"
command. For example,
cdtoa dict.dic > dict.u
"dict.u" here is the output text format dictionary, while the "dict.dic" is the input binary format dictionary.
usagefreqfile may indicate more than one user usage frequency files (for a particular user). These usage frequency information will be
reflected in the text format dictionary created.
OPTIONS
-s To order the entries in text dictionary according to Pinyin or Zhuyin.
-n To attach sequence numbers to the output.
-z To convert the binary format back to text format in Zhuyin.
(Note: default is Pinyin)
-e If the Hanzi inside the text dictionary contains characters such as space and tab, they will be compacted to special format.
(Default)
-E If the Hanzi inside the text dictionary contains characters such as space and tab, they will NOT be compacted to special format.
-h cixingfile
To specify the Cixing definition file.
NOTE
1. The parts in [ ] are options. They may be omitted.
2. The Pinyin and Zhuyin dictionary has the same format.
3. The default conversion result of the text dictionary is in Pinyin.
13 May 1992 CDTOA(1)