Hi,
i have a file from which i extracted 2nd column and put it into a variable Acct_Num . Now i need to extract first 3 digits from it and save in to other variable.
My Code is:
Please put code inside [code] tags.
Quote:
The immediate problem is that a shell variable is not expanded inside single quotes. You can pass a variable to awk with -v:
The other problem is that your script will run excruciatingly slowly because you are calling awk twice for every line of the file.
Instead of using a shell loop, let awk do all the work:
Hello everyone.
I'm writing a script in UNIX. The purpose is to get the second character from a variable that stores the system year.
This is the code:
unix_year_yy=`date "+%g"`
This will return "07" in variable unix_year_yy. How can I get the second character (7)?? (6 Replies)
hi all, I have read similiar topics in this board, but i didn' t find the posting which is the same with the problem i face.. I try to extract string from the end. i try to do this:
num=abcdefghij
num2=${num:-5}
echo $num2 #this should print the last 5 characters (fghij)
but it doesn;t... (3 Replies)
Dear All,
i have a file that contains,
FROM_DATE: 06-08-2007 00:00:00 TO_DATE: 06-08-2007 23:59:59 Total number of lines: 6874154
in another file,the contain is,
FROM_DATE: 06-08-2007 00:00:00 Total number of lines: 874154
alltime i want to find the particular string... (4 Replies)
Hi,
I am trying to do something which I thought was very simple but still being a beginner, has proved not to be.
Input:
val1 val2 val3 val4 val5 val6
.
.
.
etc
Desired Output:
Every row in which value of val6 is a number starting with 0.0 or contains a capital E. The input... (2 Replies)
I have a file which comes with a few tags and some contents inside them.
eg:
<ABC>Hello Unix.com</ABC>
<XYZ>WWSHF</XYZ>
Now I want to pick out the contents in between the tags <ABC> and </ABC>.
The contents within <ABC> and </ABC> spans more than one line. So greping and cutting is not an... (4 Replies)
I need to check the occurrence of one string within another.
code
********************
if ;then do something done
********************
Thanks (7 Replies)
Hi All,
I have a ouput string likes 'u8wos' or 'u10acsd' or somthing else 'u{number}{any characters}'and I want to get the number behind the letter 'u' by bash shell.
Thanks
Damon (11 Replies)
Hi Gurus,
I am working with a korn shell script to simplify some operations of creation file of spool for a Bulk-Copy. Thi is my code:
In a for cycle:
gzcat ${file} |awk '{ print substr($0,1,5)";"substr($0,108,122)";"substr($0,124,131)";"substr($0,139,152)";"substr($0,154,163)";"}' >>... (6 Replies)
Hi All,
In ksh, am trying to get a substring stuff done. Not sure where the problem is.. can you guys guide me on this...
for instance, var1=41, and var2=4175894567, then i want to know whether var2 starts with var1.. var1 and var2 can be of any length..
VAR1=41
VAR2=419068567777... (6 Replies)
Greetings.
I'm looking to isolate the first occurrence of an arbitrary substring which may be present at any particular line in a given file. The enclosing end markers for the target in our thought problem are string" and ". The complete string and surrounding text could look something like... (3 Replies)
Discussion started by: LinQ
3 Replies
LEARN ABOUT DEBIAN
mu-extract
MU-EXTRACT(1) General Commands Manual MU-EXTRACT(1)NAME
mu_extract - display and save message parts (attachments), and open them with other tools.
SYNOPSIS
mu extract [options] <file> mu extract [options] <file> <pattern>
DESCRIPTION
mu extact is the mu sub-command for extracting MIME-parts (e.g., attachments) from mail messages. It works on message files, and does not
require the message to be indexed in the database.
For attachments, the file name used when saving it, is the name of the attachment in the message. If there is no such name, or when saving
non-attachment MIME-parts, a name is derived from the message-id of the message.
If you specify a pattern (a case-insensitive regular expression) as the second argument, all attachments with filenames matching that pat-
tern will be extracted. The regular expressions are Perl-compatible (as per the PCRE-library).
Without any options, mu extract simply outputs the list of leaf MIME-parts in the message. Only 'leaf' MIME-parts (including RFC822 attach-
ments) are considered, multipart/* etc. are ignored.
OPTIONS -a, --save-attachments
save all MIME-parts that look like attachments.
--save-all
save all non-multipart MIME-parts.
--parts=<parts>
only consider the following numbered parts (comma-separated list).The numbers for the parts can be seen from running mu extract
without any options but only the message file.
--target-dir=<dir>
save the parts in the target directory rather than the current working directory.
--overwrite
overwrite existing files with the same name; by default overwriting is not allowed.
--play Try to 'play' (open) the attachment with the default
application for the particular file type. On MacOS, this uses the open program, on other platforms is uses xdg-open. You can choose
a different program by setting the MU_PLAY_PROGRAM environment variable.
EXAMPLES
To display information about all the MIME-parts in a message file:
$ mu extract msgfile
To extract MIME-part 3 and 4 from this message, overwriting existing files with the same name:
$ mu extract --parts=3,4 --overwrite msgfile
To extract all files ending in '.jpg' (case-insensitive):
$ mu extract msgfile '.*.jpg'
To extract an mp3-file, and play it in the the default mp3-playing application.
$ mu extract --play msgfile 'whoopsididitagain.mp3'
BUGS
Please report bugs if you find them: http://code.google.com/p/mu0/issues/list
AUTHOR
Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
SEE ALSO mu(1)User Manuals February 2012 MU-EXTRACT(1)