[Solved] Performance issue with fgrep -vf file1 file2>file3
Hi all,
My requirement is that i have two files file1 and file2. file1 content is present in file2. i want to have a final which will have file2 contents but not the contents of file1 so I am running below command.
and fgrep -v is taking 25Minutes to complete the operation
Is there any other way we can do same operation in less time?
Last edited by Franklin52; 08-16-2013 at 03:13 AM..
Reason: Please use code tags
Hi Guru's,
I need to create 3 files with the contents "ABC" using single command.
Iam using:
echo "ABC" > file1.txt file2.txt file3.txt
the above command is not working. pls help me...
With Regards / Ganapati (4 Replies)
file1 has pgap500 500
file2 has bunch of data
cat file1 file2 > file3
cp file2 file3.dat then vi pgap500 500 onto 1st line
compare file3 and fil3.dat, they are not the same.
any idea ? the 1st line, i want to put pg500 xxx
---------- Post updated at 07:35 AM ---------- Previous... (2 Replies)
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chr10100036394-100038350AK077761
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file1
file2
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I'm getting the lines to match
awk 'FNR==NR {a++}; FNR!=NR && a' file1 file2
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File 1 has a list of IP address (more than 1k)
File1:1.1.1.1
2.2.2.2
1.1.1.2
3.3.3.3
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Discussion started by: cmccabe
6 Replies
LEARN ABOUT HPUX
merge
merge(1) General Commands Manual merge(1)NAME
merge - three-way file merge
SYNOPSIS
file1 file2 file3
DESCRIPTION
combines two files that are revisions of a single original file. The original file is file2, and the revised files are file1 and file3.
identifies all changes that lead from file2 to file3 and from file2 to file1, then deposits the merged text into file1. If the option is
used, the result goes to standard output instead of file1.
An overlap occurs if both file1 and file3 have changes in the same place. prints how many overlaps occurred, and includes both alterna-
tives in the result. The alternatives are delimited as follows:
lines in file1
lines in file3
If there are overlaps, edit the result in file1 and delete one of the alternatives.
This command is particularly useful for revision control, especially if file1 and file3 are the ends of two branches that have file2 as a
common ancestor.
EXAMPLES
A typical use for is as follows:
1. To merge an RCS branch into the trunk, first check out the three different versions from RCS (see co(1)) and rename them for
their revision numbers: 5.2, 5.11, and 5.2.3.3. File 5.2.3.3 is the end of an RCS branch that split off the trunk at file 5.2.
2. For this example, assume file 5.11 is the latest version on the trunk, and is also a revision of the "original" file, 5.2.
Merge the branch into the trunk with the command:
3. File 5.11 now contains all changes made on the branch and the trunk, and has markings in the file to show all overlapping
changes.
4. Edit file 5.11 to correct the overlaps, then use the command to check the file back in (see ci(1)).
WARNINGS
uses the ed(1) system editor. Therefore, the file size limits of ed(1) apply to
AUTHOR
was developed by Walter F. Tichy.
SEE ALSO diff3(1), diff(1), rcsmerge(1), co(1).
merge(1)