hi gurus ,,
I have multiple files with same file pattern..in a particular directory
for ex: file20061101.trf
file20061102.trf
file20061103.trf
Each of the file has a header as column names..
My questions is how can i eliminate the first row of each of these... (11 Replies)
Hi ,
Can you guys please help as I have list of files xaa, xab, xac.........xza for eg in which to perform load the 1st (xaa) and insert into table, then only proceed for the 2nd , 3rd and so forth.
In other words, before 1st one finished, 2nd one shall not load and insert to table, and so... (0 Replies)
I want to extraxt data from a html table
the html file is downloaded from
UG / PG Univ - Exam.Results April/May 2008
After processing the html file using sed i got the output like this
11305106082,RANJANI R,
CS1251,20,69,P
CS1302,20,45,P
EC1006,20,52,P
EC1351,20,53,P... (5 Replies)
Dear All,
can anybody help me out in generating a command that can be used to view the last line of multiples files.
e.g:
file 1 contains 100 records
file 2 contains 200 records
file 3 contails 300 records
now i need a command that can be used to display the last line of each... (7 Replies)
i need to compare three files in unix
a.txt b.txt c.txt
1 2 1
2 5 3
4 6 5
5 6
6
i need to insert a blank line in the file if i don't find a match
and put the items at the same column if found a match
The items in the files... (4 Replies)
Hi,
I have a directory full of *.txt files. I would like to print the last line of every file to screen.
I know you can use FNR for printing the first line of each file, but how do I access the last line of each file?
This code doesn't work, it only prints the last line of the last file:BEGIN... (5 Replies)
Hi,
We have a folder that has files in the following structure
abc.sql
def.sql
efg.sql
.
.
.
xyz.sql
I have to find a certain string (say "test") in each file and replace it with the name of the file. For eg. if "test" is present in abc.sql, I want to replace it with "test abc". If... (8 Replies)
Hi Forum.
I'm struggling to find a solution for the following issue.
I have multiple files a1.txt, a2.txt, a3.txt, etc. and I would like to insert a tab-delimited header record at the beginning of each of the files.
This is my code so far but it's not working as expected.
for i in... (2 Replies)
I am looking for help in processing of those options: '-n' or '-p'
I understand what they do and how to use them.
But, I would like to use them with more than one file (and without any shell-loop; loading the 'perl' once.)
I did try it and -n works on 2 files.
Question is:
- is it possible to... (6 Replies)
Discussion started by: alex_5161
6 Replies
LEARN ABOUT BSD
diff3
DIFF3(1) General Commands Manual DIFF3(1)NAME
diff3 - 3-way differential file comparison
SYNOPSIS
diff3 [ -exEX3 ] file1 file2 file3
DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes:
==== all three files differ
====1 file1 is different
====2 file2 is different
====3 file3 is different
The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways:
f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3.
f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1.
The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e.
the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ====
(====3). The following command will apply the resulting script to `file1'.
(cat script; echo '1,$p') | ed - file1
The -E and -X are similar to -e and -x, respectively, but treat overlapping changes (i.e., changes that would be flagged with ==== in the
normal listing) differently. The overlapping lines from both files will be inserted by the edit script, bracketed by "<<<<<<" and ">>>>>>"
lines.
For example, suppose lines 7-8 are changed in both file1 and file2. Applying the edit script generated by the command
"diff3 -E file1 file2 file3"
to file1 results in the file:
lines 1-6
of file1
<<<<<<< file1
lines 7-8
of file1
=======
lines 7-8
of file3
>>>>>>> file3
rest of file1
The -E option is used by RCS merge(1) to insure that overlapping changes in the merged files are preserved and brought to someone's atten-
tion.
FILES
/tmp/d3?????
/usr/libexec/diff3
SEE ALSO diff(1)BUGS
Text lines that consist of a single `.' will defeat -e.
7th Edition October 21, 1996 DIFF3(1)