extracting string between two regular expressions "|" patterns - string

I want to extract all the strings between gi| and |. The position of the string is consistent in all the lines.
I am trying this one:
cat ERR594382_second_cat.test | sed -n '/gi\|/,/\|/p'
But, it is not working.
Here is a head of my file :
head ERR594382_second_cat.test
ERR594382.28316455_3_6_1 gi|914605561|ref|WP_050599988.1| 22 54 67 99 4.03e-15 77.0 100.000 33 0 0 225971;1306953 Bacteria Erythrobacter citreus;Erythrobacter citreus LAMA 915 ribonuclease D [Erythrobacter citreus]
ERR594382.28316455_65_2_3 gi|914605561|ref|WP_050599988.1| 13 46 11 44 2.15e-17 82.8 100.000 34 0 0 225971;1306953 Bacteria Erythrobacter citreus;Erythrobacter citreus LAMA 915 ribonuclease D [Erythrobacter citreus]
ERR594382.28316459_1_1_2 gi|1270336953|gb|PHR32068.1| 8 53 863 903 6.98e-08 56.6 63.043 46 12 1 2024840 Bacteria Methylophaga sp. phosphohydrolase [Methylophaga sp.]
ERR594382.28316464_2_2_3 gi|705244733|gb|AIW56710.1| 2 33 145 176 5.76e-12 67.8 93.750 32 2 0 340016 Viruses uncultured virus ribonucleotide reductase, partial [uncultured virus]
ERR594382.28316464_53_5_5 gi|1200458341|gb|OUV73944.1| 1 31 557 587 9.54e-11 64.3 80.645 31 6 0 1986721 Bacteria Flavobacteriales bacterium TMED123 hypothetical protein CBC83_04720 [Flavobacteriales bacterium TMED123]
ERR594382.28316465_3_3_2 gi|787065740|dbj|BAR36435.1| 1 46 204 249 5.55e-10 63.2 58.696 46 19 0 1407671 Viruses uncultured Mediterranean phage uvMED hypothetical protein [uncultured Mediterranean phage uvMED]
ERR594382.28316465_67_4_3 gi|787065740|dbj|BAR36435.1| 2 34 224 256 1.31e-07 55.1 66.667 33 11 0 1407671 Viruses uncultured Mediterranean phage uvMED hypothetical protein [uncultured Mediterranean phage uvMED]
ERR594382.28316466_18_6_3 gi|1200295886|gb|OUU17830.1| 1 33 92 124 1.73e-12 70.1 100.000 33 0 0 1986638 Bacteria Alphaproteobacteria bacterium TMED37 hypothetical protein CBB97_21775 [Candidatus Endolissoclinum sp. TMED37]
ERR594382.28316470_37_1_1 gi|787067413|dbj|BAR37857.1| 16 43 60 87 1.94e-09 58.9 96.429 28 1 0 1407671 Viruses uncultured Mediterranean phage uvMED terminase large subunit [uncultured Mediterranean phage uvMED]
ERR594382.28316474_2_5_1 gi|1219813777|gb|ASN63501.1| 1 33 62 94 3.55e-12 64.3 81.818 33 6 0 340016 Viruses uncultured

You could use grep or / pcregrep (in case of using macOS) with this:
pcregrep -o "gi\|\K.+?(?=\|)" file
or with:
grep -oP "gi\|\K.+?(?=\|)" file
The \K can be read as excluding everything to the left before it and return only the right part .+, and then the .+?(?=\|) match any characters until | is found.
The easiest way if only your delimiter is fixed could be with cut:
cut -f2 -d"|" file

Related

pandas read_csv not reading entire file

I have a really strange problem and don't know how to solve it.
I am using Ubuntu 18.04.2 together with Python 3.7.3 64-bit and use VScode as an editor.
I am reading data from a database and write it to a csv file with csv.writer
import pandas as pd
import csv
with open(raw_path + station + ".csv", "w+") as f:
file = csv.writer(f)
# Write header into csv
colnames = [par for par in param]
file.writerow(colnames)
# Write data into csv
for row in data:
file.writerow(row)
This works perfectly fine, it provides a .csv file with all the data I read from the database up to the current timestep. However in a later working step I have to read this data to a pandas dataframe and merge it with another pandas dataframe. I read the files like this:
data1 = pd.read_csv(raw_path + file1, sep=',')
data2 = pd.read_csv(raw_path + file2, sep=',')
And then merge the data like this:
comb_data = pd.merge(data1, data2, on="datumsec", how="left").fillna(value=-999)
For 5 out of 6 locations that I do this, everything works perfectly fine, the combined dataset has the same length as the two seperate ones. However for one location pd.read_csv seems not to read the csv files properly. I checked whether the problem is already in the database readout but everything is OK there, I can open both files with sublime and they have the same length, however when I read them with pandas.read_csv one shows less lines. The best part is, this problem is appearing totally random. Sometimes it works and reads the entire file, sometimes not. AND it occures at different locations in the file. Sometimes it stops after approx. 20000 entries, sometimes at 45000, sometimes somewhere else.. just totally random.
Here is an overview of my test output when I print all the lengths of the files
print(len(data1)): 57105
print(len(data2)): 57105
both values directly after read out from database, before writing it anywhere..
After saving the data as csv as described above and opening it in excel or sublime or anything I can confirm that the data contains 57105 rows. Everything is where it is supposed to be.
However if I try to read the data as with pd.read_csv
print(len(data1)): 48612
print(len(data2)): 57105
both values after reading in the data from the csv file
data1 48612
datumsec tl rf ff dd ffx
0 1538352000 46 81 75 288 89
1 1538352600 47 79 78 284 93
2 1538353200 45 82 79 282 93
3 1538353800 44 84 71 284 91
4 1538354400 43 86 77 288 96
5 1538355000 43 85 78 289 91
6 1538355600 46 80 79 286 84
7 1538356200 51 72 68 285 83
8 1538356800 52 71 68 281 73
9 1538357400 48 75 68 276 80
10 1538358000 45 78 62 271 76
11 1538358600 42 82 66 273 76
12 1538359200 43 81 70 274 78
13 1538359800 44 80 68 275 78
14 1538360400 45 78 66 279 72
15 1538361000 45 78 67 282 73
16 1538361600 43 79 63 275 71
17 1538362200 43 81 69 280 74
18 1538362800 42 80 70 281 76
19 1538363400 43 78 69 285 77
20 1538364000 43 78 71 285 77
21 1538364600 44 75 61 288 71
22 1538365200 45 73 56 290 62
23 1538365800 45 72 44 297 57
24 1538366400 44 73 51 286 57
25 1538367000 43 76 61 281 70
26 1538367600 40 79 66 284 73
27 1538368200 39 78 70 291 76
28 1538368800 38 80 71 287 81
29 1538369400 36 81 74 285 81
... ... .. ... .. ... ...
48582 1567738800 7 100 0 210 0
48583 1567739400 6 100 0 210 0
48584 1567740000 5 100 0 210 0
48585 1567740600 6 100 0 210 0
48586 1567741200 4 100 0 210 0
48587 1567741800 4 100 0 210 0
48588 1567742400 5 100 0 210 0
48589 1567743000 4 100 0 210 0
48590 1567743600 4 100 0 210 0
48591 1567744200 4 100 0 209 0
48592 1567744800 4 100 0 209 0
48593 1567745400 5 100 0 210 0
48594 1567746000 6 100 0 210 0
48595 1567746600 5 100 0 210 0
48596 1567747200 5 100 0 210 0
48597 1567747800 5 100 0 210 0
48598 1567748400 5 100 0 210 0
48599 1567749000 6 100 0 210 0
48600 1567749600 6 100 0 210 0
48601 1567750200 5 100 0 210 0
48602 1567750800 4 100 0 210 0
48603 1567751400 5 100 0 210 0
48604 1567752000 6 100 0 210 0
48605 1567752600 7 100 0 210 0
48606 1567753200 6 100 0 210 0
48607 1567753800 5 100 0 210 0
48608 1567754400 6 100 0 210 0
48609 1567755000 7 100 0 210 0
48610 1567755600 7 100 0 210 0
48611 1567756200 7 100 0 210 0
[48612 rows x 6 columns]
datumsec tl rf schnee ival6
0 1538352000 115 61 25 107
1 1538352600 115 61 25 107
2 1538353200 115 61 25 107
3 1538353800 115 61 25 107
4 1538354400 115 61 25 107
5 1538355000 115 61 25 107
6 1538355600 115 61 25 107
7 1538356200 115 61 25 107
8 1538356800 115 61 25 107
9 1538357400 115 61 25 107
10 1538358000 115 61 25 107
11 1538358600 115 61 25 107
12 1538359200 115 61 25 107
13 1538359800 115 61 25 107
14 1538360400 115 61 25 107
15 1538361000 115 61 25 107
16 1538361600 115 61 25 107
17 1538362200 115 61 25 107
18 1538362800 115 61 25 107
19 1538363400 115 61 25 107
20 1538364000 115 61 25 107
21 1538364600 115 61 25 107
22 1538365200 115 61 25 107
23 1538365800 115 61 25 107
24 1538366400 115 61 25 107
25 1538367000 115 61 25 107
26 1538367600 115 61 25 107
27 1538368200 115 61 25 107
28 1538368800 115 61 25 107
29 1538369400 115 61 25 107
... ... ... ... ... ...
57075 1572947400 -23 100 -2 -999
57076 1572948000 -23 100 -2 -999
57077 1572948600 -22 100 -2 -999
57078 1572949200 -23 100 -2 -999
57079 1572949800 -24 100 -2 -999
57080 1572950400 -23 100 -2 -999
57081 1572951000 -21 100 -1 -999
57082 1572951600 -21 100 -1 -999
57083 1572952200 -23 100 -1 -999
57084 1572952800 -23 100 -1 -999
57085 1572953400 -22 100 -1 -999
57086 1572954000 -23 100 -1 -999
57087 1572954600 -22 100 -1 -999
57088 1572955200 -24 100 0 -999
57089 1572955800 -24 100 0 -999
57090 1572956400 -25 100 0 -999
57091 1572957000 -26 100 -1 -999
57092 1572957600 -26 100 -1 -999
57093 1572958200 -27 100 -1 -999
57094 1572958800 -25 100 -1 -999
57095 1572959400 -27 100 -1 -999
57096 1572960000 -29 100 -1 -999
57097 1572960600 -28 100 -1 -999
57098 1572961200 -28 100 -1 -999
57099 1572961800 -27 100 -1 -999
57100 1572962400 -29 100 -2 -999
57101 1572963000 -29 100 -2 -999
57102 1572963600 -29 100 -2 -999
57103 1572964200 -30 100 -2 -999
57104 1572964800 -28 100 -2 -999
[57105 rows x 5 columns]
To me there is no obvious reason in the data why it should have problems reading the entire file and obviously there are none, considering that sometimes it reads the entire file and sometimes not.
I am really clueless about this. Do you have any idea how to cope with that and what could be the problem?
I finally solved my problem and as expected it was not within the file itself. I am using multiprocesses to run the named functions and some other things in parallel. The reading from database + writing to csv file and reading from csv file are performed in two different processes. Therefore the second process (reading from csv) did not know that the csv file was still being written and read only what was already available in the csv file. Because the file was opened by a different process it did not throw an exception when being opened.
I thought I already took care of this but obviously not thoroughly enough, excluding every possible case.
I had completely the same problem with a different application and also did not understand what was wrong, because sometimes it worked and sometimes it didn't.
In a for loop, I was extracting the last two rows of a dataframe that I was creating in the same file. Sometimes, the extracted rows where not the last two at all, but most of the times it worked fine. I guess the program started extracting the last two rows before the writing process was done.
I paused the script for half a second to make sure the writing process is done:
import time
time.sleep(0.5)
However, I don't think this is not a very elegant solution, since it might not be sufficient if somebody with a slower computer uses the script for instance.
Vroni, how did you solve this in the end, is there a way to define that a specific process must not be processed parallel with other tasks. I did not define anything about parallel processing in my program, so I think if this is the cause it is done automatically.

How to extract lines from a file when the second columns of a file matches the values in another file

I got two files.
file 1:
4
14
18
45
53
60
64
102
106
158
162
file2:
28 1 2
54 1 2
90 1 1
103 1 1
155 1 17
191 1 1
235 1 1
245 4 1
275 4 1
362 4 1
377 18 1
391 18 1
413 18 2
466 18 2
492 18 2
494 18 41
498 45 1
522 45 1
529 57 3
542 53 1
560 58 6
562 164 25
568 164 5
I want to extract the value from file2 if the second column of file two matches the value in file 1.
So the expected output will be:
245 4 1
275 4 1
362 4 1
377 18 1
391 18 1
413 18 2
466 18 2
492 18 2
494 18 41
498 45 1
522 45 1
542 53 1
I saw many of the solution online is using python or Perl, however, I want to use linux command to do this, any idea?
This should do it?
awk 'FNR==NR{a[$0]++};FNR!=NR{if($2 in a){print}}' file1 file2
245 4 1
275 4 1
362 4 1
377 18 1
391 18 1
413 18 2
466 18 2
492 18 2
494 18 41
498 45 1
522 45 1
542 53 1
Explanation:
we hand awk both files (order is important in this case!).
as long as we read the first file (FNR==NR) we store each value in an array a[$1]++
when we reach the second file we just check if values from the second file's second column ($2) are in the array; if yes, we print them.

Split columns based on a specific column

I have a number of files with 2 or more columns, and I need to split the columns that are not the first based on the first column.
Ex:
1 15 90
4 20 89
1 38 129
4 56 150
4 43 171
1 45 210
So, I need, in file1:
1 15 90
1 38 129
1 45 210
And in file 2:
4 20 89
4 56 150
4 43 170
Can anyone help?
Thanks a lot,
Pedro.
awk '{print > ("file" $1)}' file

Grep rows with a length of 3

Hi i have a table which looks like this:
chr10 84890986 84891021 2 17.5 2 93 0 61 48 2 48 0 1.16 GA
chr10 84897562 84897613 2 25.5 2 100 0 102 50 49 0 0 1 AC
chr10 84899819 84899844 2 12.5 2 100 0 50 0 0 52 48 1 GT
chr10 84905282 84905318 6 5.8 6 87 6 54 80 19 0 0 0.71 AAAAAC
chr10 84955235 84955267 2 16 2 100 0 64 50 0 0 50 1 AT
chr10 84972254 84972288 2 17 2 93 0 59 2 0 47 50 1.16 GT
chr10 85011399 85011478 3 25.7 3 80 12 63 58 1 40 0 1.06 GAA
chr10 85011461 85011525 3 20.7 3 87 6 74 39 0 60 0 0.97 GAG
chr10 85014721 85014841 5 23.8 5 78 8 66 0 69 0 29 1 TTCCC
chr10 85021530 85021701 5 38.4 5 84 13 53 74 0 24 0 0.85 AAGAG
chr10 85045413 85045440 3 9 3 100 0 54 66 33 0 0 0.92 CAA
chr10 85059334 85059364 5 6 5 92 0 51 20 3 0 76 0.92 ATTTT
chr10 85072010 85072038 2 14 2 100 0 56 50 50 0 0 1 CA
chr10 85072037 85072077 4 10 4 84 10 55 25 22 0 52 1.47 ATCT
chr10 85084308 85084338 6 5 6 91 0 51 83 13 3 0 0.77 CAAAAA
chr10 85096597 85096640 3 14.7 3 95 4 79 69 30 0 0 0.88 AAC
chr10 85151154 85151190 6 6.5 6 87 12 51 0 11 0 88 0.5 TTTCTT
chr10 85168255 85168320 4 16.2 4 100 0 130 50 0 49 0 1 AGGA
chr10 85173155 85173184 2 14.5 2 100 0 58 48 0 0 51 1 TA
chr10 85196836 85196861 2 12.5 2 100 0 50 52 48 0 0 1 AC
chr10 85215511 85215546 2 17.5 2 100 0 70 51 48 0 0 1 AC
chr10 85225048 85225075 2 13.5 2 100 0 54 51 48 0 0 1 AC
chr10 85242322 85242357 2 17.5 2 93 0 61 0 2 48 48 1.16 TG
chr10 85245934 85245981 4 11 4 79 20 51 27 2 0 70 0.99 ATTT
chr10 85249139 85249230 5 18.8 5 88 6 116 0 60 0 39 0.97 TTCCC
chr10 85251100 85251153 5 11 5 97 2 92 0 0 37 62 0.96 GTTTG
chr10 85268725 85268752 4 6.8 4 100 0 54 0 25 0 74 0.83 CTTT
chr10 85268767 85268798 4 7.8 4 100 0 62 0 0 22 77 0.77 TTTG
chr10 85269189 85269239 6 8.8 6 79 16 54 84 2 12 2 0.8 AAAAGA
chr10 85330217 85330253 2 18 2 100 0 72 0 0 50 50 1 TG
chr10 85332256 85332314 4 15 4 82 7 75 70 1 27 0 0.97 AAGA
chr10 85337969 85337996 2 13.5 2 100 0 54 0 0 48 51 1 TG
chr10 85344795 85344957 2 75.5 2 83 12 198 45 4 3 45 1.42 TA
chr10 85349732 85349765 5 6.8 5 93 6 59 84 15 0 0 0.61 AAAAC
chr10 85353082 85353109 5 5.4 5 100 0 54 0 22 18 59 1.38 CTGTT
I want to extract all rows with have 3 and only 3 characters in the last column. My try till now is this:
grep -E "['ACTG']['ACTG']['ACTG']{1,3}$"
But this gives me everything from 3 and longer than 3. I tried many different combinations but nothing seems to give me what i want. Any ideas?
If you like to try awk, you can do:
awk '$NF~/\<...\>/' file
chr10 85011399 85011478 3 25.7 3 80 12 63 58 1 40 0 1.06 GAA
chr10 85011461 85011525 3 20.7 3 87 6 74 39 0 60 0 0.97 GAG
chr10 85045413 85045440 3 9 3 100 0 54 66 33 0 0 0.92 CAA
chr10 85096597 85096640 3 14.7 3 95 4 79 69 30 0 0 0.88 AAC
It will test if last field $NF has 3 character ...
This regex would also do: awk '$NF~/^...$/'
Or if you need exact characters. (PS this needs awk 4.x, or use of switch --re-interval)
awk '$NF~/^[ACTG]{3}$/' file
Using grep
grep -E " [ACTG]{3}$" file
chr10 85011399 85011478 3 25.7 3 80 12 63 58 1 40 0 1.06 GAA
chr10 85011461 85011525 3 20.7 3 87 6 74 39 0 60 0 0.97 GAG
chr10 85045413 85045440 3 9 3 100 0 54 66 33 0 0 0.92 CAA
chr10 85096597 85096640 3 14.7 3 95 4 79 69 30 0 0 0.88 AAC
You need the space, to separate last column, and {3} to get 3 and only 3 characters.
If you want to print the rows which has exactly three chars in the last column then you could use the below grep command.
grep -E " [ACTG]{3}$"
[ACTG]{3} Matches exactly three characters from the given list.
You have to grep either " ['ACTG']['ACTG']['ACTG']$" or " ['ACTG']{1,3}$".
Currently, you are grepping 3 to 5 'ACTG'.
Also, the quotes are unnecessary ['ACTG'] means "match anything between []" so any of the 5 characters 'ACTG, just grep " [ACTG]{1,3}$".
Be sure to use a delimiter for the left part (space ' ', tab\t if it is tab delimited, word boundary \b or \W).
If your lines are all ending with [ACTG]+, you can even only grep -E "\W.{,3}$"
Another way that you could do this would be using awk:
$ awk '$NF ~ /^[ACTG][ACTG][ACTG]$/' file
chr10 85011399 85011478 3 25.7 3 80 12 63 58 1 40 0 1.06 GAA
chr10 85011461 85011525 3 20.7 3 87 6 74 39 0 60 0 0.97 GAG
chr10 85045413 85045440 3 9 3 100 0 54 66 33 0 0 0.92 CAA
chr10 85096597 85096640 3 14.7 3 95 4 79 69 30 0 0 0.88 AAC
This prints all lines whose last field exactly matches 3 of the characters "A", "C", "T" or "G".
2 hours late but this is one way in awk
This can be easily edited for different lengths and fields.
awk 'length($NF)==3' file
As i was looking for answers myself i found out that Perl regex work more efficiently:
this does the deal : grep -P '\t...$' Way more compact code.
$ cat roi_new.bed | grep -P "\t...$"
chr10 81038152 81038182 3 9.7 3 92 7 51 30 0 0 70 0.88 TTA
chr10 81272294 81272320 3 8.7 3 100 0 52 0 30 69 0 0.89 GGC
chr10 81287690 81287720 3 10 3 100 0 60 66 33 0 0 0.92 CAA

Using the ash shell "for x in y"

First, bash is not installed on the system I am using. So, no bash based answers please. Ash does not do ifs with Regexes.
In an ash shell script I have a list of acceptable responses:
# NB: IFS = the default IFS = <space><tab><newline>
# 802.11 channel names
channels="1 2 3 4 5 5u 6 7 7u 8 8u 9 9u 10 10u 11 11u 2l 36 3l 40 40u 44 48
48u 4l 52 56 56u 5l 60 61 64 64u 7l 100 104 104u 108 112
112u 116 132 136 136u 140 144 144u 149 153 153u 157 161 161u 165 36l
44l 52l 60l 100l 108l 132l 140l 149l 157l 36/80 40/80 44/80 48/80 52/80 56/80 60/80
64/80 100/80 104/80 108/80 112/80 132/80 136/80 140/80 144/80 149/80 153/80 157/80 161/80"
A menu routine has returned "MENU_response" containing a possibly matching response
I want to see if I got back a valid response.
for t in "$channels"; do
echo "B MENU_response = \"${MENU_response}\" test = \"${t}\""
if [ "${MENU_response}" = "${t}" ]; then
break
fi
done
The echo in the loop is reposting that $t = all of $channels, which makes no sense. I have used this technique in several other places and it works fine.
Can someone tell me why this is happening? Do I need to wrap quotes around each individual channel?
Removing the quotes around "$channels" works for me:
$ channels="1 2 3 4 5 5u 6 7 7u 8 8u 9 9u 10 10u 11 11u 2l 36 3l 40 40u 44 48
> 48u 4l 52 56 56u 5l 60 61 64 64u 7l 100 104 104u 108 112
> 112u 116 132 136 136u 140 144 144u 149 153 153u 157 161 161u 165 36l
> 44l 52l 60l 100l 108l 132l 140l 149l 157l 36/80 40/80 44/80 48/80 52/80 56/80 60/80
> 64/80 100/80 104/80 108/80 112/80 132/80 136/80 140/80 144/80 149/80 153/80 157/80 161/80"
$ for t in $channels; do echo $t; done
1
2
3
4
5
# etc.

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