All Questions
5,599
questions
0
votes
0
answers
31
views
Delete the first line match for a domain in a list of domains [duplicate]
So if I have a list of domains in a text file:
fake.domain/file
google.com/drive/folders
stackoverflow/questions
google.com/drive/files
I'd want to be able to submit a string "google.com/...
- 1
2
votes
3
answers
114
views
How to match a group exactly zero times
I am trying to match lines that do not contain a sequence of characters using sed. According to the sed documentation (https://www.gnu.org/software/sed/manual/sed.html), you use () in sed when using ...
- 199
0
votes
1
answer
40
views
To match a digit inside a negated set [duplicate]
I need to match an arbitrary digit inside a negated set, but becasue sed doesn't support \d, I'm not sure how to do it.
Works with PCRE, but not with sed:
^[^\d]*\d*
Instead of \d, I can use [0-9] or ...
user22996855
5
votes
6
answers
259
views
Regex case-insensitive search, but have output match the case in the regex
Recently I rewrote my program to find English words that are made of chemical symbol abbreviations, for example "HErSHeY". I came up with this dynamic regex:
grep -Pi "^($(paste -s -d'|'...
- 10.4k
1
vote
3
answers
83
views
Regex that replace number lower than 100 by a string in sed script
I'm testing regular expressions in .sed script to replace a number < 100. I have to change numbers lower than 100 only in the fifth field of the CSV.
The CSV is separated by commas.
Example CSV:
...
2
votes
3
answers
62
views
Regex to ignore string before end line
I have CSV files that look like this:
"08d43c37-9b43-4030-b1db-558f8bc89d52","0007661355","cus_7luwjohxnnlujhwinhvhtmzc4y","[email protected]","...
- 117
1
vote
2
answers
88
views
Substitute the ICON reference for nothing
On an export file of more than 2600 bookmarks from Firefox, I want to import them into Buku which seems to bug with the ICON in the html file.
So I want to substitute the ICON reference for nothing.
...
- 21
1
vote
3
answers
135
views
Sed regex find a string in yaml and comment line, preserving indentation
Let's say I have the below yaml:
parent:
A:
name: foo
value: x.y.z # check=something
# value: "yay" # check=nothing
B:
name: bar
value: p.q.r # check=something
# ...
- 9,280
2
votes
3
answers
66
views
How to change urlencode spaces inside a sed capture group only?
I have some markdown files with links like this one:
[Royal Enfield Flying Flea](RE Flying Flea)
And I'm trying to urlencode the second part of the link to become
[Royal Enfield Flying Flea](RE%...
0
votes
3
answers
73
views
How to use a variable command in a sed expression [duplicate]
Testing for a simple script but I can't get this variable to cooperate with me. I've tried so many things, single quotes and doubles.
New=$(df -h)
sed -ie "200s|^.*$|"${NEW}"|g" &...
0
votes
1
answer
53
views
Can you replace a substring from a regex match?
I am trying to find datatime stamps that have an incorrect timezone due to Daylight Savings Time (starting or ending). If the timezone is incorrect, I want to replace it with the correct timezone for ...
- 23
0
votes
0
answers
35
views
How to use sed in shell script with value containing line break \n? [duplicate]
In my shell script I have conf=2bi5oIl0hldy/p3fe+KMQTVjUSg89ywhdMCaSOAopEVFM\nKlj4RDJcmNcEa1cgxL3sJNBHrw==\n
And I have a ini file that has parameter looks like this:
^PASS= SNlfkDahPoWNYCY0V+...
- 1,361
1
vote
0
answers
39
views
Why does an underscore as the last character in a character set cause GNU sed not to match text containing a hyphen? [duplicate]
I've run into very strange behavior I'm trying to understand in sed (GNU sed) 4.8 on Ubuntu.
This works:
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\-]+)\]/REPLACED/'
REPLACED
But when I ...
2
votes
1
answer
90
views
In a bash shell script, how to insert a whitespace with regular expression
here is my script
#!bin/bash
STRING1='abcdefg'
STRING2='1234567'
SEDPARSE1='sed -e s/.*(bc).*(23).*/\1\t\2/g'
SEDPARSE2='sed -e s/.*(bc).*(23).*/\1\s\2/g'
SEDPARSE3='sed -e s/.*(bc).*(23).*/\1 \2/g'
...
- 23
1
vote
1
answer
79
views
Bash: Search for consecutive repetitions of a pattern and replace it with a string containing the number of repetitions
I used pandoc to convert a .docx file to .tex. The original file was a fill in the blank where the blanks were created using the _ character repeatedly.
In .tex this has been literally converted to \_ ...
- 345