I want to replace only percent of occurrence of a pattern (not all, for example, half of occurrence of a pattern) in my text and it replaces randomly occurrences (or for example multiple of 3 occurrences).
for example, I have a text like below:
The text contains 20 a.
I want to replace half ofa (not whole of them) and randomly (not half of the first occurrences)
replace a to b and the result is something like below:
best regards
Welcome on board!
As you have seen our rules, we are here to help you not do the work for you, what have you tried so far?
We also need to know a minimum such as your OS and version and the shell you are using
1- I tried to turn text to one array and replace them something like this:
But this code doesn't keep the new line and echo all text in one line and my text is so big about 15 Gb and can't put it in one array.
2- Choose randomly from all occurrences of one word or token in the whole text.
simply can get number of repetition by something like this ( grep "a" | wc -l )
3- I can use python to do this but my text is huge and I want to use bash since it is faster than python. In python I use a set contains (a,b) and in replace function use a random function to choose (a or b) from that set.
4- I use Ubuntu 18.04, sed (GNU sed) 4.4, GNU Awk 4.1.4, API: 1.1 (GNU MPFR 4.0.1, GNU MP 6.1.2)
5- I simplify the problem, the main problem is that: I want to normalize a text corpus for training a tri-gram language model, in the language model, the sequence of words is important. I normalize the numbers to letters so for example, I convert all 30 to thirty but we use often half instead of thirty for reporting hour (e.g 8:30). I want to replace randomly things like this not whole of them.
Hey,
How can i create randomly create time N times.
Suppose i want to create data for a particualr date 5 times...
Mon Jan 19 11:42:50
Mon Jan 19 19:16:40
Mon Jan 19 12:12:33
Mon Jan 19 14:26:27
Mon Jan 19 12:29:53
Mon Jan 19 13:30:31
I want the script to create N times randome... (2 Replies)
Hello,
This is my code:
nb_lignes=`wc -l $1 | cut -d " " -f1`
for i in $(seq $nb_lignes)
do
m=`head $1 -n $i | tail -1`
//command
done
Please how can i change it to get Get 20% of lines in File randomly to apply "command" on each line ? 20% or 40% or 60 % (it's a parameter)
Thank you. (15 Replies)
Hi,
(First post, please be gental!)
I have a java app that I am running on unix (centos)
But it keeps dying randomly. The times seem random from anything between 3 hours and 3 days.
I have a cronjob running to restart it when ever it dies but I would rather this happened less often.
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Hi,
I tried to adapt bartus's solution to my problem, without success. I want to replace all the occurences of this:
with:
, where something can contain an arbitrary number of balanced parens and brakets.
Any ideas ?
Best, (1 Reply)
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CAR sweet head
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Hi there!
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