Sorting text files or other data, for example with the sort utility.

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2
votes
5answers
132 views

How to sort file by character occurrences per line?

I'm quite new to Linux, and I've found quite a bit of useful information on how to do character counts in a file, but is there a way in Linux/terminal to sort a text file by the number of times a ...
8
votes
5answers
619 views

How intelligent are unix utilities?

Unix utilities like sort, find, grep, diff et al are very handy to perform quick tasks, sometimes without writing any code at all. I wanted to know what algorithms do they internally use and how do ...
5
votes
4answers
1k views

For each subfolder, sort files by name and rename them to sequential padded numbers (regardless of extension)

I have the following directory structure: . ├── event-a │   ├── album-a │   │   ├── a.jpg │   │   └── x.png │   └── album-b │   ├── a.jpg │   ├── x.png │   └── y.gif └── event-b ├── ...
2
votes
2answers
474 views

Calculate median value for a column and say if this value is “OK” or “ERROR” if falls within acceptable range

I would like to calculate the median value of a particular column in a .txt file, output that value and also say if that output value is ok. I can do the initial steps and output the median value, ...
1
vote
1answer
32 views

Group by Functionality on Mac Address

I'm looking for a solution that should do grouping of identical mac address(device ids). I tried using sort -k 2, but I'm not confident of the result. Data Set looks like: 1616.93,ac:22:0b:a6:22:c3 ...
7
votes
2answers
174 views

Sorting a file with integer in parentheses with no space

I am trying to sort a file like this (which is a list of subroutine names) cfn=(1370) __lib_file_MOD_file_open fn=(1368) __universe_MOD_general_boot fn=(916) __universe_MOD_general_main fn=(6142) ...
2
votes
2answers
108 views

sort and uniq columns individually in a text file

I have a file as below: D F T E A R T E K A O E E T P J I would like to sort each column and unique the columns individually as below: A A O E D F P J E R T K T I wonder if there is anyone who ...
0
votes
2answers
51 views

Display filenames with grep

I'm looking for a way to display the filename when using this command: cat *.tcp | grep "tcp" | grep "open" | sort | uniq Is there a way to do it?
8
votes
7answers
2k views

How to sort (by whatever key) BibTex entries in `.bib` file?

I work with LaTeX and do versioning with Git. For bibliography management I use Mendeley. The problem is that each time Mendeley synchronizes it's .bib exports, they are in different order, what ...
2
votes
2answers
78 views

Sort files with a specific extension by modified time and store them into an array

I have found many answers to sort the files of directory and even to save them in an array. Sorting Example ls -t Directory listing in array array=(*) My particular problem needs to sort files ...
3
votes
2answers
53 views

sort in unix on a big file [duplicate]

I have a file like this chr1 101466461 101466462 1 chr6 160143888 160143889 1 chr19 19231081 19231082 1 chr18 47008735 47008736 1 chr1 161407811 161407812 1 chr4 ...
5
votes
5answers
3k views

Any tricks to speed up sort?

For example for bzip there is pbzip, a parallel version of bzip. Is there any such parallelization tools for sort to improve performance?
0
votes
3answers
58 views

How to sort/reformat text information in a file?

I have a file (called customers) with information that needs to be sorted; example: qweasd,asdqwd@asd.org,256.62394383 qweasdczasd,asdghjghqwd@assssd.org,256.62394383 ...
5
votes
5answers
525 views

Grouped sorting of continuous paragraphs (separated by blank line)?

I think I'm pretty experienced now in sorting by columns; however, I haven't found anything so far how to sort continuous rows. Supposing we have a text file that looks like this: (very simplified, ...
8
votes
2answers
6k views

How to sort big files?

I have a PC with Intel(R) Pentium(R) CPU G640 @ 2.80GHz and 8 GByte RAM. Installed Scientific Linux 6.5 on it with EXT3 filesystem. Q: What is the fastest way I can do a "sort -u list.txt -o ...
0
votes
1answer
42 views

Sort -u without sorting but with better uniqueness? [duplicate]

I don't want to sort my file, just filter out duplicate lines, maintaining the original ordering. Is there a way to use sort's unique function without it's sort function (something like cat -u would ...
5
votes
3answers
196 views

Sort one column only, keeping remaining columns untouched

How to (numerically) sort a specific column in a text file, without affecting other columns (irrespective of whether they are sorted or unsorted)? On other threads I found -s argument, but it does ...
1
vote
1answer
33 views

Sorting in reverse numeric order on subfield in a multi-field sort

I'm trying to use GNU sort on a directory/file listing, eg (subset of much longer listing): exams2008/Zoology/Summer/ZY4019Sum08.pdf exams2009/Zoology/Summer/ZY4019.pdf ...
3
votes
3answers
2k views

Sort comma-separated fields on each line by numeric value

I tried this: $ echo "2,3435,1" | sort -n 2,3435,1 $ sort -t',' -n test_sort.txt kill,gill,burger 110,20,30,13 $ cat test_sort.txt 110,20,30,13 kill,gill,burger Why doesn't my sort command work? ...
0
votes
0answers
36 views

Archlinux: Gnome 3.16 - ls & nautilus incorrect sorting

Recently switched from Xfce 4.12 DE to Gnome 3.16 and I have a problem with dirs & files sorting in terminal and nautilus. Test directories (how it should be): [ Pqr ] Abc Klm My current order ...
15
votes
2answers
1k views

How does awk '!a[$0]++' work?

This one-liner removes duplicate lines from text input without pre-sorting. For example: $ cat >f q w e w r $ awk '!a[$0]++' <f q w e r $ The original code I have found on the internets ...
3
votes
1answer
98 views

Find, count and sort all audio files. ALAC (M4A) files

I'm putting a script together to sort a very large music collection. It's approx 22000 albums, a mixture of FLAC, WAV, AIFF, M4A (AAC & ALAC). So far, I can sort by file type and get a total size ...
36
votes
5answers
27k views

What is the difference between “sort -u” and “sort | uniq”?

Everywhere I see someone needing to get a sorted, unique list, they always pipe to sort | uniq. I've never seen any examples where someone uses sort -u instead. Why not? What's the difference, and why ...
4
votes
3answers
93 views

Find largest files from each date in a directory

I have a directory similar to the following: -rw-r--r-- 1 root root 223K Apr 28 14:25 2015.04.28_14.25 -rw-r--r-- 1 root root 253K Apr 28 14:55 2015.04.28_14.55 -rw-r--r-- 1 root root 276K Apr 28 ...
2
votes
3answers
259 views

How to sort data in the file using script?

I have a file logs.txt with numbers which repeat: 1 QWE 1 ASD 1 QWE 1 QWE 1 QWE 1 qwe 12 22 qwe 2 aaa 2 vcc 2 xxx 4 asa 44 qwe 4 gfd 4 bcx 5 6 kuy 7 76 lol 5 4 ggg 23 ...
0
votes
2answers
71 views

How to turn Diff command into bash script with prompt

I have a list that i've copy and i want to paste it to the shell to give me just the repeated lines. 1 1 3 2 As i read about bash commands i've maded this: cat > /tmp/sortme ...
0
votes
1answer
12 views

see newest release last (YML release files with the same timestamp from Git)

I pull from Git *yml files with "$packagename-$release.yml". The highest number is the most recent release. I wish to have the listening with latest release last. Correct sort order ...
2
votes
1answer
50 views

sort -u (unique) works for multi-keys but not for a single key

Using GNU sort. I want to print only the first of a group of lines, based on duplicate key(s). -k1,2 works as expected – only the 1st sorted line is output printf %s\\n 'a a c' 'a a b' 'a a a' | ...
3
votes
2answers
3k views

Sort and count number of occurrence of lines

I have Apache logfile, access.log, how to count number of line occurrence in that file? for example the result of cut -f 7 -d ' ' | cut -d '?' -f 1 | tr '[:upper:]' '[:lower:]' is a.php b.php a.php ...
1
vote
1answer
51 views

what is the default delimiter for sort -k option

What is the default delimiter for sort's -k option? I searched some man page and samples and still feel lost.
23
votes
8answers
20k views

List files sorted numerically

I have a bunch of files from log1 to log164. I'm trying to LIST the directory (sorted) in a UNIX terminal but the sort functions are only providing the format like this: home:logs Home$ ls -1 | sort ...
4
votes
4answers
122 views

Stable sort a file by presence of ordered substrings on each line

I have a list of sound sources that I'm processing with a script. An example would be: alsa_input.usb-AVEO_Technology_Corp._USB2.0_Camera-02-Camera.analog-mono ...
1
vote
1answer
78 views

sort file based one colum and group by another column

I have a file of three columns: 1 A 0.5 2 B 0.7 3 A 10 4 C 4 5 B 4 I want to sort the file by increasing order of column 3 and group by column 2 1 A 0.5 3 A 10 ...
5
votes
2answers
164 views

How to sort lines that contain “_” numerically?

Here's a subset of the file names in my file: profile_10_1_1 profile_10_1_2 profile_1_1_1 I'm trying to sort them numerically in ascending order, that is starting from 1 onwards. I used the ...
4
votes
3answers
6k views

How is it possible to sort ps command's CPU field?

I'm trying to make a small command that will find the processes that use the most CPU power. Firstly, I use ps aux > file.txt and then cut -c 16-20 file.txt | sort -n | tail -5. The result I get ...
1
vote
1answer
59 views

Search and sorts error logs based on a particular string

How to search through all the errors.zip as well as from errors.log files filter by "Error" string and sort by date? What about totals of errors? requirement : here are 3 components are installed ...
2
votes
2answers
798 views

Creating recursively sorted RAR archive

For various reasons I decided to use RAR archive to store some data, instead compressed tar. Happy with decision, except for one thing: I can't find a way to store files sorted. Order of files is ...
7
votes
3answers
820 views

Unix sort out of memory

I'm sorting a 25 GB file containing 200M lines on Fedora 18 using: sort -S 10G -T /bigdisk bigfile and I am getting process killed due to no memory. The process isn't maxing out my RAM before death ...
0
votes
1answer
49 views

direct GNU sort to use much memory and many cores

I have a fairly large text file (19Gb, half a billion lines) and a fairly large server on which to sort it (16 cores, 64Gb memory) running Ubuntu 12.04. What is the best way to use the command line ...
1
vote
2answers
59 views

Append words to wordlist with sort -u avoinding duplicata

I have 2 txt file called one.txt with duplicata: yesterday yesterday today today tomorrow tomorrow and the second txt called two.txt with duplicata: mike mike paul paul tomorrow tomorrow Using ...
1
vote
1answer
126 views

How to tell the sizes of files and folders, sorted, and in MB, GB, instead of a long integer? [duplicate]

On a Mac, using Bash, I tend to do du -sh * to tell the sizes of files and folders in the current directory, in MB and GB. But if I want to sort them by the sizes, I might do du -sh * | sort -g ...
-1
votes
1answer
88 views

sort | uniq not working on different files [closed]

I have no idea why the command sort filename.txt | uniq is not working on this file: http://packetstormsecurity.com/files/32089/koran.gz.html I have also used: awk '!seen[$0]++' koran.txt perl ...
4
votes
2answers
144 views

how to sort by the day of the week?

I have two files. file1: Dave 734.838.9800 Bob 313.123.4567 Carol 248.344.5576 Mary 313.449.1390 Ted 248.496.2204 Alice 616.556.4458 file2: Bob Tuesday Carol Monday Ted Sunday ...
68
votes
12answers
36k views

how do you sort du output by size?

How do you sort du -sh /dir/* by size? I read one site that said use | sort -n but that's obviously not right. Here's an example that is wrong. [~]# du -sh /var/* | sort -n 0 /var/mail 1.2M ...
23
votes
4answers
6k views

sort inplace - like sed --in-place - exists?

Am I blind or is there no option like --in-place for sort? In order to save results to the input file, sed uses -i (--in-place). Redirecting the output of sort to the input file sort < f > f ...
1
vote
1answer
273 views

sort and uniq in awk

I know there are "sort" and "uniq" out there, however, today's question is about how to utilise AWK to do that kind of a job. Say if I have a list of anything really (ips, names, or numbers) and I ...
1
vote
2answers
111 views

sort only the first column and uniq

I have a list as such below: 1,cat 1,dog 2,apple 3,human I'd like an output like this: 1,cat,dog 2,apple 3,human So value 1 from column 1 contains the value of cat and dog from ...
2
votes
3answers
146 views

Sorting numbers and respective units in columns

I have a list like this: 1,kg,cat 1000,g,dog 20,g,apple And I want to sort it by weight. 1 kg and 1000 g would be the same, so I'd like to have my rows sorted by weight. My data set is ...
0
votes
1answer
62 views

can we get sorted grep output

I have same: 1.txt with apple written in it, 2.txt with mango written in it, 3.txt with apple written in it, 4.txt with mango written in it. grep -e apple -e mango *.txt will give result as: 1.txt: ...
4
votes
1answer
26 views

Sort based on field1, field2 but preserving field 1 sort and ignoring nulls/blanks in 2nd sort

After doing a lot of home work and running multiple test scenarios, I decided to get help from experts Here is my scenario Input data after sorting by Column 1 -bash-3.2$ sort -t'|' -k1 -k2 ...