10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
This post is already here but want to do this with another way
Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files
file1.csv:
1|abc
1|def
2|ghi
2|jkl
3|mno
3|pqr
file2.csv:
1|123|jojo
1|NULL|bibi... (2 Replies)
Discussion started by: yjacknewton
2 Replies
2. Shell Programming and Scripting
I have two directories called English and Hindi. Each directory contains the same number of files with the only difference being that in the case of the English Directory the tag is
.english
and in the Hindi one the tag is
.Hindi
The file may contain either a single text or more than one text... (7 Replies)
Discussion started by: gimley
7 Replies
3. Shell Programming and Scripting
I have 2 files namely branch.txt file & RXD.txt file as below
Ex:Branch.txt
=========================
B1,Branchname1,city,country
B2,Branchname2,city,country
B3,Branchname3,city,country
B4,Branchname4,city,country
B5,Branchname5,city,country
RXD file : will... (11 Replies)
Discussion started by: satece
11 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I have 20 tab delimited text files that have a common column (column 1). The files are named GSM1.txt through GSM20.txt. Each file has 3 columns (2 other columns in addition to the first common column).
I want to write a script to join the files by the first common column so that in the... (5 Replies)
Discussion started by: evelibertine
5 Replies
5. Homework & Coursework Questions
I need help program in C... :create a program that runs two processes linked oven (1 Reply)
Discussion started by: gizmo16
1 Replies
6. Shell Programming and Scripting
Hi, I'm doing a script that generate some background process like
for file in `find $dir -type f -maxdepth 1 -mtime -1`;
do
exp="java -cp process.jar testing $file &"
eval $exp
echo $! #Get the PID
echo $(basename $file) >> log
done
Is there a way to know when those... (1 Reply)
Discussion started by: amondracorp
1 Replies
7. UNIX for Dummies Questions & Answers
Hello,
My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns:
File A: (tab-delimited)
PDB CHAIN Start End Fragment
1avq A 171 176 awyfan
1avq A 172 177 wyfany
1c7k A 2 7... (3 Replies)
Discussion started by: InfoSeeker
3 Replies
8. Programming
example sql:
select a.a1,b.b1,c.c1,d.d1,e.e1
from a
left outer join b on a.x=b.x
left outer join c on b.y=c.y
left outer join d on d.z=a.z
inner join a.t=e.t
I know how single outer or inner join works in sql.
But I don't really understand when there are multiple of them.
can... (0 Replies)
Discussion started by: robbiezr
0 Replies
9. Programming
How can we create a background process programmatically?
One way I know of is to fork() and exit from the parent process, leaving the child running. It will run as a background process.
I would like to know if there are any other ways.
In perticular how are daemon processes created? (1 Reply)
Discussion started by: ipzig
1 Replies
10. UNIX for Advanced & Expert Users
helo i make one process for com port . in that i create two thread one for reading data and another for writing data to com port.
now i want to write a script which create 30 processes for handling 30 com port.
is it good solution for handling 30 com port.
Thx & Regards,
Amit (2 Replies)
Discussion started by: amitpansuria
2 Replies