It's difficult to tell you how you to accomplish a task, if you don't even specify what programming language you are going to use.
As to your question regarding extracting a single character:
Assuming that you have read the line in question to a shell variable, extracting a character at a certain position from a variable can be done in bash or zsh with
In Zsh, you also have the option to write
In your case, you might also consider to not solve this within the respective shell language, but pipe the selected lines into 'cut'. Given that your problem description is somewhat fuzzy, I can't recommend which solution is the better one. In any case, have a look at the the man-page for 'cut'.
Last edited by rbatte1; 11-29-2016 at 05:33 AM..
Reason: Added CODE tags
Hi All,
My shell script will call a java component with some arguments , the java component returns a string value to the shell script. How to assign the return value to the shell variable.
Here is the sample code.
In my shell script i am calling the java as fallows.
--exporting... (1 Reply)
Hi all,
I have a huge csv file with the following format of data,
Num SNPs, 549997
Total SNPs,555352
Num Samples, 157
SNP, SampleID, Allele1, Allele2
A001,AB1,A,A
A002,AB1,A,A
A003,AB1,A,A
...
...
...
I would like to write out a list of unique SNP (column 1). Could you... (3 Replies)
Hi,
I'm fairly new to UNIX, but hopefully some-one can help me with this:
I am using the following code to find files with the name "example.xml":
find . -name "example.xml" -print
that would print me a list like the example here:
./dir1/dir2/example.xml... (5 Replies)
done some homework on this--
after i remove up to and including the ) i want to take newfile.txt and use that list to remove the files from a file in my the directory pwd
i have a input.txt file
cat input,txt
1)mary.jpg
12)john.jpg
100)frankkfkdf .jpg
i want to remove the characters in the... (1 Reply)
I have a list of strings, for example:
set strLst = "file1 file2 file3 file4"
I want to log an error if some of the fields happen to begin with -, or have characters like ; : ' , ? ] { =
Which means for example setting
set ierr = 1 (2 Replies)
Hi I have a function :
Make_Report()
{
trx_report=`sqlplus -s $conn_str << @@
set echo off;
set pages 0;
set feedback off;
set verify off;
select srv_trx_s_no,... (1 Reply)
hi
my problem is little complicated one. i have 2 files which appear like this
file 1
abbsss:aa:22:34:as akl abc 1234
mkilll:as:ss:23:qs asc abc 0987
mlopii:cd:wq:24:as asd abc 7866
file2
lkoaa:as:24:32:sa alk abc 3245
lkmo:as:34:43:qs qsa abc 0987
kloia:ds:45:56:sa acq abc 7805
i... (5 Replies)
Hello all,
I have a directory with 2000+ files. I need to look in each file for an invoice number. To identify this, i can search for the string 'BIG' and then retrieve the next 30 characters. I was thinking awk for this, but not sure how to do it. Each file contains one long string and in... (8 Replies)
I am trying to have the user select two files from a numbered list which will eventually be turned into a variable then combined. This is probably something simple and stupid that I am doing.
clear
echo "Please Select the Show interface status file"
select FILE1 in *;
echo "Please Select the... (3 Replies)