Remove Text from XML File using Bash

Question

I have a bash script that generates an xml file (drivers_list.xml) and has to subsequently remove this line:

xmlns="http://feed.elasticstats.com/schema/nascar/series-v2.0.xsd"

By looking around this page I found some suggestions and attempted,

sed -i '' "s/xmlns=\"http://feed.elasticstats.com/schema/nascar/series-v2.0.xsd\"//g" drivers_list.xml

Unfortunately, when I run it, I get the following error:

sed: 1: "s/xmlns="http://feed.el ...": bad flag in substitute command: 'f'

How can I fix this?

some thing wrong with the pattern split character in the search string or replace string. in your case, you could use # instead of / as pattern split character, so it didn't need to escape the / in search or replace string, like sed "s#original_string_without_she#new_string_without_she#/g" drivers_list.xml. — Victor Lee
– Victor Lee, Commented Jun 21, 2021 at 1:48
welcome to SO, one more thing as the same, you could use single quote ' instead of double quote " to contain the s/regexp/replacement/, so you didn't need to escape the " in the pattern string, because your pattern string didn't contain the ' in this case. I can't find the pattern split character with English link, I only found a Chinese link(blog.chinaunix.net/uid-12072359-id-2960859.html), maybe you could understand it by translator. — Victor Lee
– Victor Lee, Commented Jun 21, 2021 at 2:28

zx485 · Accepted Answer · 2021-06-21 01:45:36Z

1

You have to escape all slashes(/) and use two types of quotes(',"):

sed -i 's/xmlns=\"http:\/\/feed.elasticstats.com\/schema\/nascar\/series-v2.0.xsd\"//g' drivers_list.xml

Then the output should be as expected.
Of course, with this approach you will not catch the xmlns='...' definitions - which are equally valid.

edited Jun 21, 2021 at 1:45

answered Jun 21, 2021 at 1:40

zx485

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Victor Lee Over a year ago

You have to escape all slashes(/) it make no sense, you could use other pattern split character such as # / ,, so it didn't need to escape the character which not equal the pattern split character.

Victor Lee · Accepted Answer · 2021-06-21 03:45:27Z

0

Find it -- Delimiters in sed substitution

Sed can use any character as a delimiter. 
In fact, it will automatically use the character following the `s` as a delimiter.

answered Jun 21, 2021 at 3:45

Victor Lee

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