I have created these files in a particular directory
a_1.txt
a_2.txt
...
..
a_n.txt
Each file has a single line.
I want to write a output file a.txt, which will have concantated value of string from all the files.
which utility should i use. copy, cat or paste????
Can anyone help... (5 Replies)
Hello guys,
I gotta question, i have a lot of log files (simple text) and i need to merge them in group of 10 files, one next to the other, that have sense?
For example, i have the files:
File1
File2
File3
File4
.
.
File100
I need to merge the contents of each file into a new file... (3 Replies)
Hi,
i have the files f1 and f2 like:
files f1:
c1 a1
c2 a2
c3 a3
file f2:
c1 b1
c2 b2
c3 b3
i want merge the f1 and f2 file to f3 file like:
c1 a1 b1
c2 a2 b3
c3 a3 b3........
....
.
.
please help me onthis..... (5 Replies)
hi,
i am facing a problem in merging two files using awk,
the problem is as stated below,
file1:
A|B|C|D|E|F|G|H|I|1
M|N|O|P|Q|R|S|T|U|2
AA|BB|CC|DD|EE|FF|GG|HH|II|1
....
....
....
file2 :
1|Mn|op|qr (2 Replies)
hi
i have two files
file1
1234567
1234678
1234679
file2
98765|jjkskk|9393|iyutr
98765|kkooo|9393|hjjjd
98765|abcvfg|9393|sskds
output should be
1234567|jjkskk|9393|iyutr
1234678|kkooo|9393|hjjjd
1234679|abcvfg|9393|sskds (5 Replies)
Given are File A and File B
File A has for example 5 lines:
AAA
BBB
CCC
DDD
EEE
File B has 3 lines:
111
222
333
How can i merge A and B into:
111
222
333
AAA (first line from A)
then a new file: (4 Replies)
Hi,
I would like to know how can I merge files based on their coordinates, but mantaining the score of each file in the output file like:
Note: 1st column is for chromosome, 2nd for start, 3rd for end of segment, 4th for score
file1:
1 200 300 20
1 400 500 30
file2:
1 200 350 30
1... (1 Reply)
Hi,
My requirement is,there is a directory location like:
:camp/current/
In this location there can be different flat files that are generated in a single day with same header and the data will be different, differentiated by timestamp, so i need to verify how many files are generated... (10 Replies)
Dear Gents,
Please I need your help... I need small script :) to do the following.
I have a thousand of files in a folder produced daily.
I need first to merge all files called. txt (0009.txt, 0010.txt, 0011.txt) and and to output a resume of all information on 2 separate files in csv... (14 Replies)
Dear Team,
I am using DB2 v10.5 and trying to load huge data using MERGE option ( 10-12 Million) using below query. Basically it loads data from staging to target . Staging table schemaname.Customer_Staging has 12 Million records . Runs for 25 Mins for just select query. But while doing merge... (2 Replies)
Discussion started by: Perlbaby
2 Replies
LEARN ABOUT OPENDARWIN
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u The -u option guarantees that the output is unbuffered.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
DIAGNOSTICS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
BSD September 15, 2001 BSD