I have already tried all options that I found online to solve my issue but without good result.
Basically I have two csv files (pipe separated):
file1.csv:
123|21|0452|IE|IE|1|MAYOBAN|BRIN|OFFICE|STREET|MAIN STREET|MAYOBAN|
123|21|0453|IE|IE|1|CORKKIN|ROBERT|SURNAME|CORK|APTS|CORKKIN|
123|21|0452|IE|IE|1|CORKCOR|NAME|HARRINGTON|DUBLIN|STREET|CORKCOR|
file2.csv:
MAYOBAN|BANGOR|2400
MAYOBEL|BELLAVARY|2400
CORKKIN|KINSALE|2200
CORKCOR|CORK|2200
DUBLD11|DUBLIN 11|2100
I need a linux bash script to find the value of pos.3 from file2 based on the content of pos7 in file1.
Example:
file1, line1, pos 7: MAYOBAN
find MAYOBAN in file2, return pos 3 (2400)
the output should be something like this:
**2400**
**2200**
**2200**
**etc...**
Please help
Jacek
A little approach, far away to be perfect:
DELIMITER="|"
for i in $(cut -f 7 -d "${DELIMITER}" file1.csv );
do
grep "${i}" file2.csv | cut -f 3 -d "${DELIMITER}";
done
This will work, but since the input files must be sorted, the output order will be affected:
join -t '|' -1 7 -2 1 -o 2.3 <(sort -t '|' -k7,7 file1.csv) <(sort -t '|' -k1,1 file2.csv)
The output would look like:
2200
2200
2400
which is useless. In order to have a useful output, include the key value:
join -t '|' -1 7 -2 1 -o 0,2.3 <(sort -t '|' -k7,7 file1.csv) <(sort -t '|' -k1,1 file2.csv)
The output then looks like this:
CORKCOR|2200
CORKKIN|2200
MAYOBAN|2400
Edit:
Here's an AWK version:
awk -F '|' 'FNR == NR {keys[$7]; next} {if ($1 in keys) print $3}' file1.csv file2.csv
This loops through file1.csv and creates array entries for each value of field 7. Simply referring to an array element creates it (with a null value). FNR is the record number in the current file and NR is the record number across all files. When they're equal, the first file is being processed. The next instruction reads the next record, creating a loop. When FNR == NR is no longer true, the subsequent file(s) are processed.
So file2.csv is now processed and if it has a field 1 that exists in the array, then its field 3 is printed.
You can use Miller (https://github.com/johnkerl/miller).
Starting from input01.txt
123|21|0452|IE|IE|1|MAYOBAN|BRIN|OFFICE|STREET|MAIN STREET|MAYOBAN|
123|21|0453|IE|IE|1|CORKKIN|ROBERT|SURNAME|CORK|APTS|CORKKIN|
123|21|0452|IE|IE|1|CORKCOR|NAME|HARRINGTON|DUBLIN|STREET|CORKCOR|
and input02.txt
MAYOBAN|BANGOR|2400
MAYOBEL|BELLAVARY|2400
CORKKIN|KINSALE|2200
CORKCOR|CORK|2200
DUBLD11|DUBLIN 11|2100
and running
mlr --csv -N --ifs "|" join -j 7 -l 7 -r 1 -f input01.txt then cut -f 3 input02.txt
you will have
2400
2200
2200
Some notes:
-N to set input and output without header;
--ifs "|" to set the input fields separator;
-l 7 -r 1 to set the join fields of the input files;
cut -f 3 to extract the field named 3 from the join output
cut -d\| -f7 file1.csv|while read line
do
grep $line file1.csv|cut -d\| -f3
done
Related
This question already has answers here:
Compare two files line by line and generate the difference in another file
(14 answers)
Closed 2 years ago.
FILE1:
cat
dog
house
tree
FILE2:
dog
cat
tree
I need to be printed only:
house
$ cat file1
cat
dog
house
tree
$ cat file2
dog
cat
tree
$ grep -vF -f file2 file1
house
The -v flag only shows non-matches, -f is for a filename to use as a filter, and -F is for exact matches (doesn't slow it down with any pattern matching).
Using awk
awk 'FNR==NR{arr[$0]=1; next} !($0 in arr)' FILE2 FILE1
First build an associative array with words from FILE2 and than loop over FILE1 and only print those.
Using comm
comm -2 -3 <(sort FILE1) <(sort FILE2)
-2 suppresses lines unique to FILE2 and -3 suppresses lines found in both.
If you want just the words, you can sort the files, diff them, then use sed to filter out diff's symbols:
diff <(sort file1) <(sort file2) | sed -n '/^</s/^< //p'
Awk is an option here:
awk 'NR==FNR { arr[$1]="1" } NR != FNR { if (arr[$1] == "") { print $0 } } ' file2 file1
Create an array called arr, using the contents of file2 as indexes. Then with file1, look at each entry and check to see if an entry in the array arr exists. If it doesn't, print.
I am trying to join two files but they don't have the same number of lines. I need to join them by the second column.
File1:
11#San Noor#New York, US
22#Maria Shiry#Dubai, UA
55#John Smith#London, England
66#Viki Sam#Roman, Italy
81#Sara Moheeb#Montreal, Canada
File2:
C1#Steve White#11
C2#Hight Look#21
E1#The Heaven is more#52
I1#The Roma Seen#55
The output should be:
The output for paired lines should look like:
San Noor#Sereve White
The output for unpairable lines should look like:
Sara Moheeb#NA
(The file3 after joining should contain 5 lines and look as followed.)
San Noor#Steve White
Maria Shiry#Hight Look
John Smith#The Heaven is more
Viki Sam#The Roma Seen
Sara Moheeb#NA
I have tried to join these two files using this command:
join -t '#' -j2 -e "NA" <(sort -t '#' -k2 File1) <(sort -t '#' -k2 File2) > File3
It says that both files are not sorted. Also, I need a way to fill in missing values after join.
Extract relevant columns and paste them together.
paste -d '#' <(cut -d '#' -f2 file1) <(cut -d '#' -f2 file2)
Well, but this will fail for the NA case, when one file has less lines then the other. You could pipe it to something along awk -v OFS='#' -F'#' { for (i=1;i<NF;++i) if (length($i) == 0) $i="NA"; } to substitute empty fields for the string NA.
So I guess your method is a possible one, but you have nothing to "join" on the files. So join on an a imaginary column with line numbers:
join -t'#' -eNA -a1 -a2 -o1.2,2.2 <(cut -d'#' -f2 file1 | nl -w1 -s'#') <(cut -d'#' -f2 file2 | nl -w1 -s'#')
I have a file in Linux contains strings:
CALLTMA
Starting
Starting
Ending
Starting
Ending
Ending
CALLTMA
Ending
I need the quantity of any string (FE. #Ending, # Starting, #CALLTMA). In my example I need obtaining:
CALLTMA : 2
Starting: 3
Ending : 4
I can obtaining this output when I execute 3 commands:
grep -i "Starting" "/myfile.txt" | wc -l
grep -i "Ending" "/myfile.txt" | wc -l
grep -i "CALLTMA" "/myfile.txt" | wc -l
I want to know if it is possible to obtain the same output using only one command.
I try running this command
grep -iE "CALLTMA|Starting|Ending" "/myfile.txt" | wc -l
But this returned the total of coincidences. I appreciate your help .
Use sort and uniq:
sort myfile.txt | uniq -c
The -c adds the counts to the unique lines. If you want to sort the output by frequency, add
| sort -n
to the end (and change to -nr if you want the descending order).
A simple awk way to handle this:
awk '{counts[$1]++} END{for (c in counts) print c, counts[c]}' file
Starting 3
Ending 4
CALLTMA 2
grep -c will work. You can put it all together in a short script:
for i in Starting CALLTMA Ending; do
printf "%-8s : %d\n" "$i" $(grep -c "$i" file.txt)
done
(to enter the search terms as arguments, just use the arguments array for the loop list, e.g. for i in "$#"; do)
Output
Starting : 3
CALLTMA : 2
Ending : 4
I want to find the last appearance of a string in a text file with linux commands. For example
1 a 1
2 a 2
3 a 3
1 b 1
2 b 2
3 b 3
1 c 1
2 c 2
3 c 3
In such a text file, i want to find the line number of the last appearance of b which is 6.
I can find the first appearance with
awk '/ b / {print NR;exit}' textFile.txt
but I have no idea how to do it for the last occurrence.
cat -n textfile.txt | grep " b " | tail -1 | cut -f 1
cat -n prints the file to STDOUT prepending line numbers.
grep greps out all lines containing "b" (you can use egrep for more advanced patterns or fgrep for faster grep of fixed strings)
tail -1 prints last line of those lines containing "b"
cut -f 1 prints first column, which is line # from cat -n
Or you can use Perl if you wish (It's very similar to what you'd do in awk, but frankly, I personally don't ever use awk if I have Perl handy - Perl supports 100% of what awk can do, by design, as 1-liners - YMMV):
perl -ne '{$n=$. if / b /} END {print "$n\n"}' textfile.txt
This can work:
$ awk '{if ($2~"b") a=NR} END{print a}' your_file
We check every second file being "b" and we record the number of line. It is appended, so by the time we finish reading the file, it will be the last one.
Test:
$ awk '{if ($2~"b") a=NR} END{print a}' your_file
6
Update based on sudo_O advise:
$ awk '{if ($2=="b") a=NR} END{print a}' your_file
to avoid having some abc in 2nd field.
It is also valid this one (shorter, I keep the one above because it is the one I thought :D):
$ awk '$2=="b" {a=NR} END{print a}' your_file
Another approach if $2 is always grouped (may be more efficient then waiting until the end):
awk 'NR==1||$2=="b",$2=="b"{next} {print NR-1; exit}' file
or
awk '$2=="b"{f=1} f==1 && $2!="b" {print NR-1; exit}' file
I have a file test.txt looking like this:
2092 Mary
103 Tom
1239 Mary
204 Mark
1294 Tom
1092 Mary
I am trying to create a shell script that will
Read each line and put the data in two columns into variable var1 and var2
If var2 in each line is the same, then add the var1 in those lines.
output the file into a text file.
The result should be unique values in the var2 column. Here's what I have so far:
#!/bin/sh
#!/usr/bin/sh
cat test.txt| while read line;
do
$var1=$(echo $line| awk -F\; '{print $1}')
$var2=$(echo $line| awk -F\; '{print $2}')
How can I reference the variable in each line and then compare them?
The expected output would be:
4423 Mary
1397 Tom
204 Mark
Using awk it is easy:
awk '{sum[$2] += $1} END {for (i in sum) printf "%4d %s\n", sum[i], i; }'
If you want to do it with bash 4.x (not 3.x), then:
declare -A sum
while read number name
do
((sum[$name] += $number))
done
for name in "${!sum[#]}"
do
echo ${sum[$name]} $name
done
The structure here is essentially isomorphic with the awk script, but a little less notationally convenient. It will read from standard input, using the names as indexes into the associative array sum. The ${!sum[#]} notation is described in the Shell Parameter Expansion section of the manual, and not even hinted at in the section on Arrays. The information is there if you know where to look.
If you want to process an arbitrary number of input files (like the awk script would) then you need to use cat to collect the data:
cat "$#" |
{
declare -A sum
while read number name
do
((sum[$name] += $number))
done
for name in "${!sum[#]}"
do
echo ${sum[$name]} $name
done
}
This is not UUOC because it handles no arguments (read standard input), one argument or many arguments.
For all the scripts, if you want to sort the output in number or name order, apply an appropriate sort to the output of the script:
script file1 file2 file3 | sort -k 1,1n # By sum increasing order
script file1 file2 file3 | sort -k 1,1nr # By sum decreasing order
script file1 file2 file3 | sort -k 2,2 # By name increasing order
script file1 file2 file3 | sort -k 2,2r # By name decreasing order