I can do this in python but I was wondering if I could do this in Linux
I have a file like this
name1 text text 123432re text
name2 text text 12344qp text
name3 text text 134234ts text
I want to find all the different types of values in the 3rd column by a particular username lets say name 1.
grep name1 filename gives me all the lines, but there must be some way to just list all the different type of values? (I don't want to display duplicate values for the same username)
grep name1 filename | cut -d ' ' -f 4 | sort -u
This will find all lines that have name1, then get just the fourth column of data and show only unique values.
I tried using cat
File contains :(here file is foo.sh you can input any file name here)
$cat foo.sh
tar
world
class
zip
zip
zip
python
jin
jin
doo
doo
uniq will get each word only once
$ cat foo.sh | sort | uniq
class
doo
jin
python
tar
world
zip
uniq -u will get the word appeared only one time in file
$ cat foo.sh | sort | uniq -u
class
python
tar
world
uniq -d will get the only the duplicate words and print them only once
$ cat foo.sh | sort | uniq -d
doo
jin
zip
You can let sort look only on 4-th key, and then ask only for records with unique keys:
grep name1 | sort -k4 -u
As an all-in-one awk solution:
awk '$1 == "name1" && ! seen[$1" "$4]++ {print $4}' filename
IMHO Michał Šrajer got the best answer but a filename needed after grep name1
And i've got this fancy solution using indexed array
user=name1
IFSOLD=$IFS; IFS=$'\n'; test=( $(grep $user test) ); IFS=$IFSOLD
declare -A index
for item in "${test[#]}"; {
sub=( $item )
name=${sub[3]}
index[$name]=$item
}
for item in "${index[#]}"; { echo $item; }
In my opinion, you need to select the field from which you need the unique values. I was trying to retrieve unique source IPs from IPTables log.
cat /var/log/iptables.log | grep "May 5" | awk '{print $11}' | sort -u
Here is the output of the above command:
SRC=192.168.10.225
SRC=192.168.10.29
SRC=192.168.20.125
SRC=192.168.20.147
SRC=192.168.20.155
SRC=192.168.20.183
SRC=192.168.20.194
So, the best idea is to select the field first and then filter out the unique data.
The following command worked for me.
sudo cat AirtelFeb.txt | awk '{print $3}' | sort -u
Here it prints the 3rd column with unique values.
I think you meant fourth column.
You can try using 'cat Filename.txt | awk '{print $4}' | sort | uniq'
Related
I wanted to display only unique words as output. How to define grep expression ?
strings file.txt |grep (filter to display only whole words) | unique
Sounds like you need to translate "whitespace" into newlines:
strings file.txt | tr '[:blank:]' '\n' | sort -u
This should work:
s="sample word sample word samples"
echo "$s" |grep -oE "\b\w+\b"|sort -u
Output:
sample
samples
word
cat file.txt | sed -e 's/\s\+/\n/g' | sort -u
grep -o . (some File) | sort -f| uniq -ic
i want to know if there is a way to make the display of this look better.
what this command displays
1 a
1 b
2 c
what i want it to look like
1 = a
1 = b
Use awk like this:
grep -o . (some File) | sort -f| uniq -ic | awk '{$1=$1." ="; print $0}
how can I compute the following from within the Unix terminal and then store the results in a file?
4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b91302add63f7b115
4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b91302add63f7b115
4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss
49FB-A855-3EED46E0BF2E,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss
4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b91302add63f7b115, 2
4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss, 1
49FB-A855-3EED46E0BF2E,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss, 1
EDIT:
OK, I think, I got it:
cat lol | cut -f 1,2 -d ',' | sort | uniq -c > lol2
My only problem now it is that the fist column of the output file should - in fact - be at the end, and also that the output file should be csv compatible. Any ideas?
Would it be a problem to simply count unique lines instead? If not, the uniq command is your friend - see its manpage, but be sure to sort the list first so that all repetitions happen after another:
sort myfile.txt | uniq -c
For your example data, returns:
2 4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b91302add63f7b115
1 4F8D-AA87-D9EC8805DFDA,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss
1 49FB-A855-3EED46E0BF2E,3a58538d510c66b98ad7bb3cb9768de08e1ae30b9130dsasdadsadss
To redirect into a file, append > outfile.txt:
sort myfile.txt | uniq -c > outfile.txt
If you need an output similar to the one in your question, you can use awk to reorder columns and sed to change delimiters:
sort count.txt | uniq -c | awk '{ print $2 " " $1 }' | sed 's/ /,/'
I am trying to read a file and sort it by number of occurrences of a particular field. Suppose i want to find out the most repeated date from a log file then i use uniq -c option and sort it in descending order. something like this
uniq -c | sort -nr
This will produce some output like this -
809 23/Dec/2008:19:20
the first field which is actually the count is the problem for me .... i want to get ony the date from the above output but m not able to get this. I tried to use cut command and did this
uniq -c | sort -nr | cut -d' ' -f2
but this just prints blank space ... please can someone help me on getting the date only and chop off the count. I want only
23/Dec/2008:19:20
Thanks
The count from uniq is preceded by spaces unless there are more than 7 digits in the count, so you need to do something like:
uniq -c | sort -nr | cut -c 9-
to get columns (character positions) 9 upwards. Or you can use sed:
uniq -c | sort -nr | sed 's/^.\{8\}//'
or:
uniq -c | sort -nr | sed 's/^ *[0-9]* //'
This second option is robust in the face of a repeat count of 10,000,000 or more; if you think that might be a problem, it is probably better than the cut alternative. And there are undoubtedly other options available too.
Caveat: the counts were determined by experimentation on Mac OS X 10.7.3 but using GNU uniq from coreutils 8.3. The BSD uniq -c produced 3 leading spaces before a single digit count. The POSIX spec says the output from uniq -c shall be formatted as if with:
printf("%d %s", repeat_count, line);
which would not have any leading blanks. Given this possible variance in output formats, the sed script with the [0-9] regex is the most reliable way of dealing with the variability in observed and theoretical output from uniq -c:
uniq -c | sort -nr | sed 's/^ *[0-9]* //'
Instead of cut -d' ' -f2, try
awk '{$1="";print}'
Maybe you need to remove one more blank in the beginning:
awk '{$1="";print}' | sed 's/^.//'
or completly with sed, preserving original whitspace:
sed -r 's/^[^0-9]*[0-9]+//'
Following awk may help you here.
awk '{a[$0]++} END{for(i in a){print a[i],i | "sort -k2"}}' Input_file
Solution 2nd: In case you want order of output to be same as input but not as sort.
awk '!a[$0]++{b[++count]=$0} {c[$0]++} END{for(i=1;i<=count;i++){print c[b[i]],b[i]}}' Input_file
an alternative solution is this:
uniq -c | sort -nr | awk '{print $1, $2}'
also you may easily print a single field.
use(since you use -f2 in the cut in your question)
cat file |sort |uniq -c | awk '{ print $2; }'
If you want to work with the count field downstream, following command will reformat it to a 'pipe friendly' tab delimited format without the left padding:
.. | sort | uniq -c | sed -r 's/^ +([0-9]+) /\1\t/'
For the original task it is a bit of an overkill, but after reformatting, cut can be used to remove the field, as OP intended:
.. | sort | uniq -c | sed -r 's/^ +([0-9]+) /\1\t/' | cut -d $'\t' -f2-
Add tr -s to the pipe chain to "squeeze" multiple spaces into one space delimiter:
uniq -c | tr -s ' ' | cut -d ' ' -f3
tr is very useful in some obscure places. Unfortunately it doesn't get rid of the first leading space, hence the -f3
You could make use of sed to strip both the leading spaces and the numbers printed by uniq -c
sort file | uniq -c | sed 's/^ *[0-9]* //'
I would illustrate this with an example. Consider a file
winebottles.mkv
winebottles.mov
winebottles.xges
winebottles.xges~
winebottles.mkv
winebottles.mov
winebottles.xges
winebottles.xges~
The command
sort file | uniq -c | sed 's/^ *[0-9]* //'
would return
winebottles.mkv
winebottles.mov
winebottles.xges
winebottles.xges~
first solution
just using sort when input repetition has not been taken into consideration. sort has unique option -u
sort -u file
sort -u < file
Ex.:
$ cat > file
a
b
c
a
a
g
d
d
$ sort -u file
a
b
c
d
g
second solution
if sorting based on repetition is important
sort txt | uniq -c | sort -k1 -nr | sed 's/^ \+[0-9]\+ //g'
sort txt | uniq -c | sort -k1 -nr | perl -lpe 's/^ +[\d]+ +//g'
which has this output:
a
d
g
c
b
I have to compare md5sums of 80 copies of same file with each other and report a failure on a mismatch. How do I do it effectively in bash? I am looking for an elegant algorithm to do it.
md5sum FILES | sed 's/ .*$//' | sort -u
If you get more than one line of output, you have a mismatch.
(This doesn't tell you where the mismatch is.)
Putting it together, and replacing the sed command with a somewhat less terse awk command:
count=$(md5sum "$#" | awk '{print $1}' | sort -u | wc -l)
if [ $count -eq 1 ] ; then
echo "Everything matches"
else
echo "Nope"
fi
The output of:
md5sum $files | sort -k 1,2
is a list of the checksums in sorted order, with the corresponding file names afterwards. If you need to eyeball the results, this might be sufficient. If you need to identify odd-ball results, you have to decide on the presentation. You say you've got 80 copies of 'the same file'. Suppose there are actually 10 copies of each of 8 versions of 'the file'. How are you going to decide which is correct and which is bogus? What if you have 41 with one hash and 39 with another - are you sure the 39 are wrong and the 41 correct? Clearly, it is likely that one hash will predominate, but you'll have to worry about those pesky boundary conditions.
You can also do fancier things, such as:
md5sum $files | sort -k 1,2 > sorted.md5
sed 's/ .*//' sorted.md5 | uniq -c | sed 's/^ *\([0-9][0-9]*\) \(.*\)/\2 \1/' > counted.md5
join -j 1 -o 1.1,2.2,1.2 sorted.md5 counted.md5
This gives you an output consisting of the MD5 checksum, repetition count, and file name. The first sed script could be replaced by awk '{print $1}' if you prefer. The second would be replaced by awk '{printf "%s %s\n", $2, $1}', which is probably clearer (and is shorter). The reason for that futzing around is to get rid of the leading spaces in the output of uniq -c which confuse join.
md5sum $files | sort -k 1,2 > sorted.md5
awk '{print $1}' sorted.md5 | uniq -c | awk '{printf "%s %s\n", $2, $1}' > counted.md5
join -j 1 -o 1.1,2.2,1.2 sorted.md5 counted.md5
I created some files x1.h, x2.h and x3.h by copying dbatools.h, and set files=$(ls *.h). The output was:
0763af91756ef24f3d8f61131eb8f8f2 1 dblbac.h
10215826449a3e0f967a4c436923cffa 1 dbatool.h
37f48869409c2b0554d83bd86034c9bf 4 dbatools.h
37f48869409c2b0554d83bd86034c9bf 4 x1.h
37f48869409c2b0554d83bd86034c9bf 4 x2.h
37f48869409c2b0554d83bd86034c9bf 4 x3.h
5a48695c6b8673373d30f779ccd3a3c2 1 dbxglob.h
7b22f7e2373422864841ae880aad056d 1 dbstringlist.h
a5b8b19715f99c7998c4519cd67f0230 1 dbimglob.h
f9ef785a2340c7903b8e1ae4386df211 1 dbmach11.h
This can be further processed as necessary (for example, with sort -k2,3nr to get the counts in decreasing order, so the deviant files appear last). You have the names of the duplicate files grouped together along with a count telling you how many there are each duplication. What you do next depends on you.
A real production script would use temporary file names instead of hard-coded names, of course, and would clean up after itself.
md5sum FILES > MD5SUMS.md5
cut -c1-32 < MD5SUMS.md5 | sort | uniq -c | sort -n
will return something like this:
1 485fd876eef8e941fcd6fc19643e5e59
1 585fd876eef8e941fcd6fc19643e5e59
5 385fd876eef8e941fcd6fc19643e5e59
Reading: 5 files have the same checksum, two other have "individual" checksums. I assume, that the majority is right, so an additional
| tail -1 | cut -c 9-
returns the checksum of the last line. Now filter everything else (and put the parts together):
md5sum FILES > MD5SUMS.md5
grep -v "$(cut -c1-32 < MD5SUMS.md5 | sort | uniq -c | sort -n | tail -1 | cut -c 9-)" MD5SUMS.md5 | cut -c35-
This will print the filenames of the non-majority files.