Have been stuck with this little puzzle. Thank you in advance for helping.
I have a directory path and would like print its path after match.
like
echo /Users/user/Documents/terraform-shared-infra/services/history_book_test | awk -F "terraform-|tfRepo-" '{print $(NF)}'
echo /Users/user/Documents/tfRepo-shared-infra/services/history_book_test | awk -F "terraform-|tfRepo-" '{print $(NF)}'
output:
shared-infra/services/history_book_test
shared-infra/services/history_book_test
When i try to add wildcard in terraform-* it doesn't work.
I would like to print path after match with terraform-* or tfRepo*.
Like:
services/history_book_test
services/history_book_test/../.. so on.
with sed:
echo /Users/user/Documents/terraform-shared-infra/services/history_book_test | sed 's|.*terraform.\([^/]*\)/.*|\1|'
shared-infra
Have tried different ways with awk and grep but no luck. Any leads or idea that I can try. Please.
Thank you.
You're confusing regular expressions with globbing patterns. Both have wildcards and look similar but have quite different meanings and uses. regexps are used by text processing tools like grep, sed, and awk to match text in input strings while globbing patterns are used by shells to match file/directory names. For example, foo* in a regexp means fo followed by zero or more additional os while foo* in a globbing pattern means foo followed by zero or more other characters (which in a regexp would be foo.*). So never just say "wildcard", say "regexp wildcard" or "globbing wildcard" for clarity.
This might be what you're trying to do, using a sed that has a -E arg to enable EREs, e.g. GNU or BSD sed:
$ sed -E 's:.*/(terraform|tfRepo)-[^/]*/::' file
services/history_book_test
services/history_book_test
or using any awk:
$ awk '{sub(".*/(terraform|tfRepo)-[^/]*/","")} 1' file
services/history_book_test
services/history_book_test
Regarding your attempt with sed sed 's|.*terraform.\([^/]*\)/.*|\1|' - if you're going to use a char other than / for the delimiters, don't use a char like | that's a regexp or backreference metachar as at best that obfuscates your code, pick some char that's always literal instead, e.g. :.
Related
I would like to replace (using sed/awk/tr) all the strings between CleanAgrobacterium and _gene by ZZZ in my file A.nwk:
(((CleanAgrobacterium_fabrum_str__C58_DE0068_Scaffold_Proteins_gene-FS783_RS12830:0,CleanAgrobacterium_fabrum_str__C58_DE0067_Scaffold_Proteins_gene-FS653_RS12825:0):0.056789,(CleanAgrobacterium_fabrum_GV2260_Complete_Genome_Proteins_gene-EML4058_RS17445:0,(CleanAgrobacterium_fabrum_1D1416_Chromosome_Proteins_gene-NQG32_RS17500:0,(CleanAgrobacterium_fabrum_PDC82_Contig_Proteins_gene-BLT49_RS14090:0,(CleanAgrobacterium_fabrum_N3394_Scaffold_Proteins_gene-G6L76_RS17395:0,(CleanAgrobacterium_fabrum_12D13_Complete_Genome_Proteins_gene-At12D13_RS18010:0,(CleanAgrobacterium_fabrum_Bi46_Contig_Proteins_gene-LQ162_RS02700:0,(CleanAgrobacterium_fabrum_ARqua1_Scaffold_Proteins_gene-HI842_RS18310:0,(CleanAgrobacterium_fabrum_N4094_Scaffold_Proteins_gene-G6L42_RS17400:0,(CleanAgrobacterium_fabrum_GV3101__pMP90_Complete_Genome_Proteins_gene-EML485_RS17435:0,(CleanAgrobacterium_fabrum_Kin001_Complete_Genome_Proteins_gene-FY134_RS17775:0,(CleanAgrobacterium_fabrum_LBA645_Complete_Genome_Proteins_gene-KXJ62_RS17445:0,(CleanAgrobacterium_fabrum_Di1525a_Scaffold_Proteins_gene-G6L89_RS17735:0,(CleanAgrobacterium_fabrum_NFIX02_Scaffold_Proteins_gene-BLR22_RS16795:0,(CleanAgrobacterium_fabrum_Arqua_Contig_Proteins_gene-EXN51_RS19140:0,(CleanAgrobacterium_fabrum_str__J-07_J-07_Scaffold_Proteins_gene-AGR8A_RS20015:0,CleanAgrobacterium_fabrum_1D132_Complete_Genome_Proteins_gene-At1D132_RS18580:0):0):0):0):0):0):0):0):0):0):0):0):0):0):0):0):0,(CleanAgrobacterium_fabrum_EHA105_Complete_Genome_Proteins_gene-EML540_RS17455:0,(CleanAgrobacterium_fabrum_RIT-As-3_Contig_Proteins_gene-ORG40_RS11815:0,(CleanAgrobacterium_fabrum_2788_Contig_Proteins_gene-G6L39_RS17590:0,(CleanAgrobacterium_fabrum_BG5_Complete_Genome_Proteins_gene-F3P66_RS17495:0,(CleanAgrobacterium_fabrum_Bi05_Contig_Proteins_gene-LQV40_RS07170:0,(CleanAgrobacterium_fabrum_str__C58_C58_Complete_Genome_Proteins_gene-ATU_RS17440:0,CleanAgrobacterium_fabrum_NFIX01_Scaffold_Proteins_gene-BMY00_RS16800:0):0):0):0):0):0):0);
sed "/CleanAgrobacterium/,/gene-/d" A.nwk
Instead of using a range, you could make the pattern more specific for the example data matching 1 or more alphanumeric chars or - or _ in between using [[:alnum:]_-]\+ and replace the match(es) with zzz
sed "s/CleanAgrobacterium[[:alnum:]_-]\+_gene/zzz/g" A.nwk
Output
(((zzz-FS783_RS12830:0,zzz-FS653_RS12825:0):0.056789,(zzz-EML4058_RS17445:0,(zzz-NQG32_RS17500:0,(zzz-BLT49_RS14090:0,(zzz-G6L76_RS17395:0,(zzz-At12D13_RS18010:0,(zzz-LQ162_RS02700:0,(zzz-HI842_RS18310:0,(zzz-G6L42_RS17400:0,(zzz-EML485_RS17435:0,(zzz-FY134_RS17775:0,(zzz-KXJ62_RS17445:0,(zzz-G6L89_RS17735:0,(zzz-BLR22_RS16795:0,(zzz-EXN51_RS19140:0,(zzz-AGR8A_RS20015:0,zzz-At1D132_RS18580:0):0):0):0):0):0):0):0):0):0):0):0):0):0):0):0):0,(zzz-EML540_RS17455:0,(zzz-ORG40_RS11815:0,(zzz-G6L39_RS17590:0,(zzz-F3P66_RS17495:0,(zzz-LQV40_RS07170:0,(zzz-ATU_RS17440:0,zzz-BMY00_RS16800:0):0):0):0):0):0):0);
This replaces all the text between CleanAgrobacterium and _gene by ZZZ:
sed -E 's/(CleanAgrobacterium).*(_gene)/\1ZZZ\2/g' A.nwk
But the result is probably not what you would expect. I assume you want ungreedy matching of the text in-between (.*). For that, use perl:
perl -pe 's/(CleanAgrobacterium).*(_gene)/\1ZZZ\2/g' A.nwk
This might work for you (GNU sed):
sed -E 's/CleanAgrobacterium/&\n/g
s/gene-/\n&/g
s/(CleanAgrobacterium)\n[^\n]*\n(gene-)/\1ZZZ\2/g
s/\n//g' file
Append a newline to CleanAgrobacterium and prepend a newline to gene-.
Replace everything that is not a newline between the desired words.
Remove any introduced newlines.
N.B. This does not cater for matches on separate lines. In this case use something like:
sed -E 'H;1h;$!d;x
s/\n/###NEWLINE%%%/g
s/CleanAgrobacterium/&\n/g
s/gene-/\n&/g
s/(CleanAgrobacterium)\n[^\n]*\n(gene-)/\1ZZZ\2/g
s/\n//g
s/###NEWLINE%%%/\n/g' file
This slurps the whole file into memory, replaces all newlines by a unique string, then applies the first solution and tidies up afterwards.
try this:
sed 's/gene-/gene-\n/g' < A.nwk | sed 's/CleanAgrobacterium.*gene-/CleanAgrobacteriumZZZgene-/g' | sed -n ':a;N;$!ba;s/\n//g;p' > output.txt
works with GNU Sed 4.9 using Linux .
Yet another sed solution. It replaces all THIS with THAT (with your samples in reality but more readable here) between START and END in "fooSTARTTHISENDfooSTARTTHISENDfoo"
and outputs "fooSTARTTHATENDfooSTARTTHATENDfoo".
$ sed -E 's/(CleanAgrobacterium)([^_]|_(_|g(_|e(_|n_)))*([^_g]|g([^_e]|e([^_n]|n[^_e]))))*(_(_|g(_|e(_|n_)))*(g(e?|en))?)?(_gene)/\1ZZZ\2/g' file
The solution is non-greedy and relies on regex capturing groups (CleanAgrobacterium)and (_gene), their backreferences \1, \2 and what is between them
([^_]|_(_|g(_|e(_|n_)))*([^_g]|g([^_e]|e([^_n]|n[^_e]))))*(_(_|g(_|e(_|n_)))*(g(e?|en))?)?
(not _gene) getting replaced by ZZZ. You could use it in, for example; GNU awk's gensub() which supports backreferencing:
$ gawk '{print gensub(/(CleanAgrobacterium)([^_]|_(_|g(_|e(_|n_)))*([^_g]|g([^_e]|e([^_n]|n[^_e]))))*(_(_|g(_|e(_|n_)))*(g(e?|en))?)?(_gene)/,"\\1ZZZ\\2","g",$0)}' file
Let's say I have a line looking like this:
/Users/random/354765478/Tests/StoreTests/Base64Tests.swift
In this example, I would like to get the result:
Tests/StoreTests/Base64Tests.swift
How can I do if I want to get everything before the first pattern match (either Sources or Tests) using sed or awk?
I am using sed 's/^.*\(Tests.*\).*$/\1/' right now but it's falling:
echo '/Users/random/354765478/Tests/StoreTests/Base64Tests.swift' | sed 's/^.*\(Tests\)/\1/'
Tests.swift
Here's another example using Sources (which seems to work):
echo '/Users/random/741672469/Sources/Store/StoreDataSource.swift' | sed 's/^.*\(Sources\)/\1/'
Sources/Store/StoreDataSource.swift
I would like to get everything before the first, and not the last Sources or Tests pattern match.
Any help would be appreciated!
How can I do if I want to get everything before the first pattern match (either Sources or Tests).
Easier to use a grep -o here:
grep -Eo '(Sources|Tests)/.*' file
Tests/StoreTests/Base64Tests.swift
Sources/Store/StoreDataSource.swift
# where input file is
cat file
/Users/random/354765478/Tests/StoreTests/Base64Tests.swift
/Users/random/741672469/Sources/Store/StoreDataSource.swift
Breakdown:
Regex pattern (Sources|Tests)/.* match any text that starts with Sources/ or Tests/ until end of the line.
-E: enables extended regex mode
-o: prints only matched text instead of full line
Alternatively you may use this awk as well:
awk 'match($0, /(Sources|Tests)\/.*/) {
print substr($0, RSTART)
}' file
Tests/StoreTests/Base64Tests.swift
Sources/Store/StoreDataSource.swift
Or this sed:
sed -E 's~.*/((Sources|Tests)/.*)~\1~' file
Tests/StoreTests/Base64Tests.swift
Sources/Store/StoreDataSource.swift
With your shown samples please try following GNU grep. This will look for very first match of /Sources OR /Tests and then print values from these strings to till end of the value.
grep -oP '^.*?\/\K(Sources|Tests)\/.*' Input_file
Using sed
$ sed -E 's~([^/]*/)+((Tests|Sources).*)~\2~' input_file
Tests/StoreTests/Base64Tests.swift
would like to get everything before the first, and not the last
Sources or Tests pattern match.
First thing is to understand reason of that, you are using
sed 's/^.*\(Tests.*\).*$/\1/'
observe that * is greedy, i.e. it will match as much as possible, therefore it will always pick last Tests, if it would be non-greedy it would find first Tests but sed does not support this, if you are using linux there is good chance that you have perl command which does support that, let file.txt content be
/Users/random/354765478/Tests/StoreTests/Base64Tests.swift
then
perl -p -e 's/^.*?(Tests.*)$/\1/' file.txt
gives output
Tests/StoreTests/Base64Tests.swift
Explanation: -p -e means engage sed-like mode, alterations in regular expression made: brackets no longer require escapes, first .* (greedy) changed to .*? (non-greedy), last .* deleted as superfluous (observe that capturing group will always extended to end of line)
(tested in perl 5, version 30, subversion 0)
I am trying to modify the name of a large number of files, all of them with the following structure:
4.A.1 Introduction to foo.txt
2.C.3 Lectures on bar.pdf
3.D.6 Processes on baz.mp4
5.A.8 History of foo.txt
And I want to add a leading zero to the last digit:
4.A.01 Introduction to foo.txt
2.C.03 Lectures on bar.pdf
3.D.06 Processes on baz.mp4
5.A.08 History of foo.txt
At first I am trying to get the new names with sed (FreeBSD implementation):
ls | sed 's/\.[0-9]/0&/'
But I get the zero before the .
Note: replacing the second dot would also work. I am also open to use awk.
While it may have worked for you here, in general slicing and dicing ls output is fragile, whether using sed or awk or anything else. Fortunately one can accomplish this robustly in plain old POSIX sh using globbing and fancy-pants parameter expansions:
for f in [[:digit:]].[[:alpha:]].[[:digit:]]\ ?*; do
# $f = "[[:digit:]].[[:alpha:]].[[:digit:]] ?*" if no files match.
if [ "$f" != '[[:digit:]].[[:alpha:]].[[:digit:]] ?*' ]; then
tail=${f#*.*.} # filename sans "1.A." prefix
head=${f%"$tail"} # the "1.A." prefix
mv "$f" "${head}0${tail}"
fi
done
(EDIT: Filter out filenames that don't match desired format.)
This pipeline should work for you:
ls | sed 's/\.\([0-9]\)/.0\1/'
The sed command here will capture the digit and replace it with a preceding 0.
Here, \1 references the first (and in this case only) capture group - the parenthesized expression.
I am also open to use awk.
Let file.txt content be:
4.A.1 Introduction to foo.txt
2.C.3 Lectures on bar.pdf
3.D.6 Processes on baz.mp4
5.A.8 History of foo.txt
then
awk 'BEGIN{FS=OFS="."}{$3="0" $3;print}' file.txt
outputs
4.A.01 Introduction to foo.txt
2.C.03 Lectures on bar.pdf
3.D.06 Processes on baz.mp4
5.A.08 History of foo.txt
Explanation: I set dot (.) as both field seperator and output field seperator, then for every line I add leading 0 to third column ($3) by concatenating 0 and said column. Finally I print such altered line.
(tested in GNU Awk 5.0.1)
This might work for you (GNU sed):
sed 's/^\S*\./&0/' file
This appends 0 after the last . in the first string of non-empty characters in each line.
In case it helps somebody else, as an alternative to #costaparas answer:
ls | sed -E -e 's/^([0-9][.][A-Z][.])/\10/' > files
To then create the script the files:
cat files | awk '{printf "mv \"%s\" \"%s\"\n", $0, $0}' | sed 's/\.0/\./' > movefiles.sh
I have file that contains a lot of data like this and I have to delete everything that matches this regex [-]+\d+(.*)
Input:
zxczxc-6-9hw7w
qweqweqweqweqwe-18-8c5r6
asdasdasasdsad-11-br9ft
Output should be:
zxczxc
qweqweqweqweqwe
asdasdasasdsad
How can I do this with AWK?
sed might be easier...
$ sed -E 's/-+[0-9].*//' file
note that .* covers +.*
AFAIK awk doesn't support \d so you could use [0-9], your regex is correct only thing you need to put it in correct function of awk.
awk '{sub(/-+[0-9].*/,"")} 1' Input_file
You don't need the extra <plus> sign afther [0-9] as this is covered by the .*
Generally, if you want to delete a string that matches a regular expression, then all you need to do is substitute it with an empty string. The most straightforward solution is sed which is presented by karafka, the other solution is using awk as presented by RavinderSingh13.
The overall syntax would look like this:
sed -e 's/ere//g' file
awk '{gsub(/ere/,"")}1' file
with ere the regular expression representation. Note I use g and gsub here to substitute all non-overlapping strings.
Due to the nature of the regular expression in the OP, i.e. it ends with .*, the g can be dropped. It also allows us to write a different awk solution which works with field separators:
awk -F '-+[0-9]' '{print $1}' file
In the following file I want to replace all the ; by , with the exception that, when there is a string (delimited with two "), it should not replace the ; inside it.
Example:
Input
A;B;C;D
5cc0714b9b69581f14f6427f;5cc0714b9b69581f14f6428e;1;"5cc0714b9b69581f14f6427f;16a4fba8d13";xpto;
5cc0723b9b69581f14f64285;5cc0723b9b69581f14f64294;2;"5cc0723b9b69581f14f64285;16a4fbe3855";xpto;
5cc072579b69581f14f6428a;5cc072579b69581f14f64299;3;"5cc072579b69581f14f6428a;16a4fbea632";xpto;
output
A,B,C,D
5cc0714b9b69581f14f6427f,5cc0714b9b69581f14f6428e,1,"5cc0714b9b69581f14f6427f;16a4fba8d13",xpto,
5cc0723b9b69581f14f64285,5cc0723b9b69581f14f64294,2,"5cc0723b9b69581f14f64285;16a4fbe3855",xpto,
5cc072579b69581f14f6428a,5cc072579b69581f14f64299,3,"5cc072579b69581f14f6428a;16a4fbea632",xpto,
For sed I have: sed 's/;/,/g' input.txt > output.txt but this would replace everything.
The regex for the " delimited string: \".*;.*\" .
(A regex for hexadecimal would be better -- something like: [0-9a-fA-F]+)
My problem is combining it all to make a grep -o / sed that replaces everything except for that pattern.
The file size is in the order of two digit Gb (max 99Gb), so performance is important. Relevant.
Any ideas are appreciated.
sed is for doing simple s/old/new on individual strings. grep is for doing g/re/p. You're not trying to do either of those tasks so you shouldn't be considering either of those tools. That leaves the other standard UNIX tool for manipulating text - awk.
You have a ;-separated CSV that you want to make ,-separated. That's simply:
$ awk -v FPAT='[^;]*|"[^"]+"' -v OFS=',' '{$1=$1}1' file
A,B,C,D
5cc0714b9b69581f14f6427f,5cc0714b9b69581f14f6428e,1,"5cc0714b9b69581f14f6427f;16a4fba8d13",xpto,
5cc0723b9b69581f14f64285,5cc0723b9b69581f14f64294,2,"5cc0723b9b69581f14f64285;16a4fbe3855",xpto,
5cc072579b69581f14f6428a,5cc072579b69581f14f64299,3,"5cc072579b69581f14f6428a;16a4fbea632",xpto,
The above uses GNU awk for FPAT. See What's the most robust way to efficiently parse CSV using awk? for more details on parsing CSVs with awk.
If I get correctly your requirements, one option would be to make a three pass thing.
From your comment about hex, I'll consider nothing like # will come in the input so you can do (using GNU sed) :
sed -E 's/("[^"]+);([^"]+")/\1#\2/g' original > transformed
sed -i 's/;/,/g' transformed
sed -i 's/#/;/g' transformed
The idea being to replace the ; when within quotes by something else and write it to a new file, then replace all ; by , and then set back the ; in place within the same file (-i flag of sed).
The three pass can be combined in a single command with
sed -E 's/("[^"]+);([^"]+")/\1#\2/g;s/;/,/g;s/#/;/g' original > transformed
That said, there's probably a bunch of csv parser witch already handle quoted fields that you can probably use in the final use case as I bet this is just an intermediary step for something else later in the chain.
From Ed Morton's comment: if you do it in one pass, you can use \n as replacement separator as there can't be a newline in the text considered line by line.
This might work for you (GNU sed):
sed -E ':a;s/^([^"]*("[^"]*"[^"]*)*"[^";]*);/\1\n/;ta;y/;/,/;y/\n/;/' file
Replace ;'s inside double quotes with newlines, transpose ;'s to ,'s and then transpose newlines to ;'s.