06-20-2010
Merge files from /etc to one file using C
Hi guys,
I have a question which might be easy to answer but I don't how to do it.
The thing is I need to make a program in C which creates a file with all the content from the files in \etc.
I'm not new to C language but to UNIX.
I've read somewhere I need to use functions like f_read f_write for files but I don't know how to traverse the directory and append the each file's info in the new file.
thank you in advance!!
Sussie
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
All,
I've basic knowlege on understanding UNIX Shell Programming. Right now I need to write a script for the following requirement. Kindly help me or suggest me how to write a Shell script.
I've 8 .csv files that are containing "Detail" records. Each file getting more than 1 million. Another... (3 Replies)
Discussion started by: nvkuriseti
3 Replies
2. Shell Programming and Scripting
Hi,
I have a pointer file ptr.txt.
There may be any number of files mentioned in the ptr.txt file
eg: cat ptr.txt
/home/abc.txt
/home/pqr.txt
/home/xyz.txt
I have to read this pointer file and merge the files given in the pointer file
so that final file say... (1 Reply)
Discussion started by: harshada
1 Replies
3. Shell Programming and Scripting
Hi, guys. I have one question:
I have two files: passwd and shadow (the number of records in these files are not equal)the contents of them are below:
passwd:
**************
ftp:x:24:24:
sshd:x:71:65:
uucp:x:10:14:
brownj:x:5005:1000:
sherrys: x :5006:1000:
...
*************
... (2 Replies)
Discussion started by: daikeyang
2 Replies
4. Shell Programming and Scripting
Hi, I have a question that I cannot solve.
if I have a file like this (lets say "x-values.dat"):
x1
x2
x3
another file like this (lets say "y-values.dat"):
y1
y2
y3
y4
and another file like this (lets say "p-values.dat"):
p1
p2
p3
...
p12
How can I get this output?
x1 y1 p1
x1 y2... (16 Replies)
Discussion started by: lego
16 Replies
5. UNIX for Dummies Questions & Answers
Dear programmers,
I have a question about conditionally merging multiple files and having their file names in the first column.
Input files:
file.1.extension file.2.extension file.3.extension file.4.extension ... file.1000.extension
where each file looks like this (with multiple lines):... (5 Replies)
Discussion started by: wei.deng
5 Replies
6. Shell Programming and Scripting
Hi, I need help with merging two files. My requirement is as below:
File 1:
MachineA
MachineB
File 2:
Process1
Process2
Desired File:
MachineA Process1
MachineB Process2
If file 2 contains only one entry Process1, then second line in the desired output should be:
MachineA Process1... (1 Reply)
Discussion started by: chiru_h
1 Replies
7. UNIX for Dummies Questions & Answers
I want to merge several files with identical format:
file 1:
rs3094315 0.0006105222804 0.9528743638
rs3131972 -0.05461465109 0.3139864854
rs3115860 -0.06041530955 0.3195499498
file 2:
rs2073813 -0.06039552152 0.2956527097
rs11564776 -0.1864266568 ... (4 Replies)
Discussion started by: luoruicd
4 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
i have a requirement as below.
There are two files.
In 1st file a.txt i have four lines as below
Ramesh
Suresh
Pradeep
Franklin
In 2nd file b.txt i have 5 lines as below
Francis
Elizabeth
David
John
Ravi
The output file suppose c.txt should contain 1st line of... (5 Replies)
Discussion started by: sureshk_85
5 Replies
9. Shell Programming and Scripting
Hi All,
I am trying to merge all the text files into one file using below snippet
cat /home/Temp/Test/Log/*.txt >> all.txt
But it seems it is not working.
I have multiple files like Output_ServerName1.txt, Output_ServreName2.txt
I want to merge each file into one single file and... (6 Replies)
Discussion started by: sharsour
6 Replies
10. Shell Programming and Scripting
Hello
Below is my requirement
I have 3 files A1.txt , A2.txt and A3.txt . A2 is dynamically generating file
I want the merge of A1,A2 and A3 in A2.txt
Could you please help? (3 Replies)
Discussion started by: Pratik4891
3 Replies
LEARN ABOUT OSX
svk::merge::info
SVK::Merge::Info(3) User Contributed Perl Documentation SVK::Merge::Info(3)
NAME
SVK::Merge::Info - Container for merge ticket information
SYNOPSIS
use SVK::Merge::Info;
my $minfo = SVK::Merge::Info->new( $svk_merge_property );
DESCRIPTION
An "SVK::Merge::Info" object represents a collection of merge tickets, including repository UUID, path and revision.
CONSTRUCTORS
new
Takes a single argument with the value of an "svk:merge" property.
METHODS
add_target
Add a single SVK::Target::Universal or SVK::Path to the collection of merge tickets.
del_target
Remove a single SVK::Target::Universal or SVK::Path from the collection of merge tickets.
remove_duplicated
Takes a single SVK::Merge::Info object as an argument. Removes merge tickets which are present in the argument and for which the
argument's revision is less than or equal to our revision.
subset_of
Takes a single SVK::Merge::Info object as an argument. Returns true if our set of merge tickets is a subset of the argument's merge
tickets. Otherwise, returns false.
is_equal
Takes a single SVK::Merge::Info object as an argument. Returns true if our set of merge tickets is equal to argument's. Otherwise,
returns false.
union
Return a new SVK::Merge::Info object representing the union of ourself and the SVK::Merge::Info object given as the argument.
resolve
verbatim
as_string
Serializes this collection of merge tickets in a form suitable for storing as an svk:merge property.
TODO
Document the merge and ticket tracking mechanism.
SEE ALSO
SVK::Editor::Merge, SVK::Command::Merge, Star-merge from GNU Arch
perl v5.10.0 2008-08-04 SVK::Merge::Info(3)