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3 votes
6 answers
196 views

I am using grep to look for strings (sequences) in a fastq-file and extract matching reads (lines). Since grep only finds perfect patterns, I was wondering whether it is possible in bash to generate a ...
Advice
0 votes
2 replies
15 views

I'm looking for a way to avoid line breaks before a class year. I'd like to be able to select 'any character' followed by a space followed by a right single quote ("Michael Green ’87" ...
1 vote
0 answers
180 views

I am trying to spawn a process so that I can do the following: Send text to its standard input and specify EOF by closing the stdin pipe. Connect the process' stdout and stderr to a TTY device so ...
Advice
0 votes
5 replies
138 views

In several packages, I've added @concept tags to Roxygen documentation for datasets. I'd like to process these to create a datasets.csv file for the package, that would include these as tags for each ...
user101089's user avatar
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1 vote
1 answer
110 views

I was experimenting with creack/pty while learning about pseudo terminals. I spawned grep and hooked it up with a pseudo terminal device as follows: package main import ( "fmt" &...
1 vote
1 answer
126 views

I am trying to use a single grep command to search for all instances of $ until a single = I have the following command so far grep -E '\$.*=' which returns all lines with a $ and then a = but it also ...
-13 votes
3 answers
130 views

I have an exercise where I have to print the lines where no letter is found multiple times, except when there is one and only one before and after an hyphen. Few examples of the lines I get are these: ...
0 votes
1 answer
78 views

I have a file test.txtwhich contains ERROR [x] If I try grep -Eo "ERROR \[[^p]\]" test.txt it matches ERROR [x]. But if I do: grep -Eo "ERROR \[[^\]]\]" test.txt which is trying ...
0 votes
3 answers
123 views

$ kscreen-doctor --outputs | grep connected Output: 65 eDP-1 enabled connected priority 1 Panel Modes: 70:1920x1080@60*! 71:1920x1080@60 72:1920x1080@48 73:1680x1050@60 74:1400x1050@60 75:1600x900@60 ...
-1 votes
1 answer
190 views

Looking for a suggestion that would be much faster. I have a large (232GB) file mongo backup. I want to take out only the April 24th lines and make a new file containing only this date or any date of ...
-2 votes
1 answer
123 views

I have a requirement where I have to extract the Jira ticket number using sed regex. I am using a self-hosted Windows runner. I have used solutions from other similar posts on Stack Overflow but ...
-2 votes
3 answers
118 views

While listing some logs, I get the following pattern: id:Batch1 1:processed id:Batch2 1:processing and some info I get multiple rows like this and they are not sorted in any way. There is no pattern ...
4 votes
3 answers
148 views

In a complex script I am using grep to get matched lines using a pattern file For example: Here is the file containing text $ cat file.txt abc$(SEQ)asdasd wwww$(SEQ)asqqqqqq efg hij$(SEQ)asdasdasd$(...
0 votes
2 answers
115 views

There are multiple answers on the same for python and perl but I am unable to find any example for tcl. Basically the intention is to read the output of grep into tcl procedure via pipe. I tried grep -...
kil47's user avatar
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