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UNIX for Dummies Questions & Answers
Remove Doubles Without Sort?
Post 302742901 by rdcwayx on Tuesday 11th of December 2012 07:58:55 PM
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1. Programming
hey there,
i've been trrying to calculate the first 10000 fibonacci numbers using a long double. weird thing is that from a certain value it returns Inf.
i'm declaring the vars as
long double var;
and printing them to a file using:
fprintf(filepointer, "%.0Ld\n", var);
am i doing... (1 Reply)
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2. Solaris
Can any one give me command How to delete duplicate records with out sort.
Suppose if the records like below:
345,bcd,789
123,abc,456
234,abc,456
712,bcd,789
out tput should be
345,bcd,789
123,abc,456
Key for the records is 2nd and 3rd fields.fields are seperated by colon(,). (2 Replies)
Discussion started by: svenkatareddy
2 Replies
3. Shell Programming and Scripting
Can any one give me command How to delete duplicate records with out sort.
Suppose if the records like below:
345,bcd,789
123,abc,456
234,abc,456
712,bcd,789
out tput should be
345,bcd,789
123,abc,456
Key for the records is 2nd and 3rd fields.fields are seperated by colon(,). (19 Replies)
Discussion started by: svenkatareddy
19 Replies
4. UNIX Desktop Questions & Answers
to determine if two two doubles are equal, we check to see if
their absolute difference is very close to zero. . .if two numbers
are less than .00001 apart, theyre equal.
keep a count field in each record (as you did in p5).
once the list is complete, ask the user to see if an element
is on... (2 Replies)
Discussion started by: rickym2626
2 Replies
5. Shell Programming and Scripting
Hi,
I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another.
Thanks (6 Replies)
Discussion started by: dvah
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I am trying to add a line to a BASH shell script to print out a large variable length table on a web page. I am very new to this obviously, but I tried this with awk and it prints out every line twice. What I am doing wrong?
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Hi!
I'm trying to figure out how to find words with X number of doubles, only. I'm searching a dictionary, (one word per line). For instance, if you want to find words containing only one pair of double letters, you could do something like this:
egrep '(.)\1' wordlist.txt |egrep -v '(.)\1.*(.)\2'... (3 Replies)
Discussion started by: sudon't
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8. Shell Programming and Scripting
I need to use bash to remove duplicates without using sort first.
I can not use:
cat file | sort | uniq
But when I use only
cat file | uniq
some duplicates are not removed. (4 Replies)
Discussion started by: locoroco
4 Replies
9. Shell Programming and Scripting
Here is my task :
I need to sort two input files and remove duplicates in the output files :
Sort by 13 characters from 97 Ascending
Sort by 1 characters from 96 Ascending
If duplicates are found retain the first value in the file
the input files are variable length, convert... (4 Replies)
Discussion started by: ysvsr1
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10. Shell Programming and Scripting
Following is the input. 1st and 3rd block are same(block starts here with '*' and ends before blank line) , 2nd and 4th blocks are also the same:
cat <file>
* Wed Feb 24 2016 Tariq Saeed <tariq.x.saeed@mail.com> 2.0.7-1.0.7
- add vmcore dump support for ocfs2
* Mon Jun 8 2015 Brian Maly... (4 Replies)
Discussion started by: Paras Pandey
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LEARN ABOUT DEBIAN
fatsort
fatsort(1) General Commands Manual fatsort(1) NAME
FATSort - FAT filesystem sorting utility SYNOPSIS
fatsort [options] device DESCRIPTION
FATsort sorts directory structures of FAT filesystems. Many MP3 hardware players don't sort files automatically but play them in the order they were transmitted to the device. FATSort can help here. OPTIONS
-c This option causes FATSort to ignore the case of filenames (e.g. 'example.mp3' is equal to 'EXAMPLE.MP3'). -f Force sorting even if the device is mounted or if FATSort cannot determine if the device is mounted. -h Shows some help information. -i Prints some file system information of the specified device. -l FATSort will not sort directory structures, but just print the current order. -o type This options specifies how FATSort will sort files and directories. type can be 'd' for directories before files (which is the default), 'f' for files before directories, or 'a' for no differentiation between files and directories. -n Uses natural order to sort directory structures instead of alphanumeric order. For example, an alphanumeric order would be file123.mp3 file21.mp3 file3.mp3 and the corresponding natural order would be file3.mp3 file21.mp3 file123.mp3. -q FATSort will work quietly without printing additional information messages. -r Sorts the directories in reverse order (Z-A). -R Sorts the directories in random order. -v Shows version information only. The following options can be specified multiple times: -d directory Sort directory only -D directory Sort directory and all subdirectories -x directory Don't sort directory -X directory Don't sort directory and all subdirectories -I prefix Ignore filename prefix prefix during sorting. For example, passing option -I "the " tells FATSort to sort 'The Beatles.mp3' like 'Beatles.mp3'. EXAMPLES
Sort FAT filesystem on an USB stick: fatsort /dev/sda1 Sort FAT filesystem in a file: fatsort /home/user/fat16_fs.img Sort directory /dir1 and all subdirectories except /dir1/dirA: fatsort /dev/sda1 -D /dir1 -x /dir1/dirA Ignore prefixes 'a ' and 'the ' during sorting: fatsort /dev/sda1 -I "a " -I "the " AUTHOR
Boris Leidner <fatsort(at)formenos.de> SEE ALSO
mount(8) fsck(8) NOTES
FAT12 is not supported yet. REPORT BUGS
Please report bugs to fatsort(at)formenos.de. Thanks. FATSort 0.9.15 2011 fatsort(1)