SED command to the following - sed

Using SED I would like to transform several hundred lines in a text file from:
Input example:
https://mysite.demo.com/topics/en-gb/3
https://mysite.demo.com/topics/en-gb/436
https://mysite.demo.com/topics/en-gb/9167
into
Output:
https://mysite.demo.com/topics/en-gb/3/pdf/3.pdf
https://mysite.demo.com/topics/en-gb/436/pdf/436.pdf
https://mysite.demo.com/topics/en-gb/9167/pdf/9167.pdf
I was wondering what SED command I would use to do this?
Many thanks


Run: echo "https://mysite.demo.com/topics/en-gb/3" |\
sed "s|\(https:\/\/mysite.demo.com\/topics\/en-gb\)\/\([0-9]\+\)|\1/\2/pdf/\2.pdf|g"
Output:
https://mysite.demo.com/topics/en-gb/3/pdf/3.pdf
Here I use sed "s|||" instead of sed "s///".


As per your sample input and expected output, this sed command would work:
sed -E 's,(.*\/)([0-9]+$),\1\2\/pdf\/\2\.pdf,g' text_file
Output:
https://mysite.demo.com/topics/en-gb/3/pdf/3.pdf
https://mysite.demo.com/topics/en-gb/436/pdf/436.pdf
https://mysite.demo.com/topics/en-gb/9167/pdf/9167.pdf

Related

manipulation of text by sed command

I a file containing the genome ids following NZ_FLAT01000030.1_173 I need to manipulate those ids like this one: NZ_FLAT01000030.1
I tried some but didn't give me the exact thing.
sed 's/_/\t/' output : NZ FLAT01000030.1_173
sed -r 's/_//' output: NZFLAT01000030.1_173
sed -r 's/_//g' output: NZFLAT01000030.1173
How can I do that by using sed command?

Are you trying to remove the undesrscore and the digits following it?
echo 'NZ_FLAT01000030.1_173' | sed -E 's/_[0-9]+//g'
NZ_FLAT01000030.1

$ echo 'NZ_FLAT01000030.1_173' | sed 's/_[^_]*$//'
NZ_FLAT01000030.1

Trying to overwrite a string that has single quotes using Perl or sed in the terminal

I have the following line in a file:
$app-assets:"/assets/";
I am trying to use sed in the terminal to overwrite that line to read as follows:
$app-assets:"http://www.example.com/assets/";
I have tried the following but it does not work:
sed -i \'\' -e \'s/app-assets:"/assets/"/app-assets:"http://www.example.com/assets/"/g\' myfile.txt
I am fine using Perl if easier.

Use the following sed approach:
sed -i 's~\(\$app-assets:"\)\(/assets/\)"~\1http://www.example.com\2"~' myfile.txt
~ here is treated as sed subcommand separator

sed 's/app-assets:\"\/assets\/\";/app-assets:\"http:\/\/www\.example\.com\/assets\/\";/g' filename

Better way to fix mocha lcov output using sed

Due to the know prob of mocha-lcov-mocha breaking file paths, I need to fix the current output paths that looks like this:
SF:Vis/test-Guid.coffee
SF:Vis/Guid.coffee
SF:Vis/test-Vis-Edge.coffee
SF:Vis/Vis-Edge.coffee
into
SF:test/Vis/test-Guid.coffee
SF:src/Vis/Guid.coffee
SF:test/Vis/test-Vis-Edge.coffee
SF:src/Vis/Vis-Edge.coffee
I'm not very good with sed, but I got it to work using:
mocha -R mocha-lcov-reporter _coverage/test --recursive | sed 's,SF:,SF:src/,' | sed s',SF.*test.*,SF:test//&,' | sed s',/SF:,,' | sed s',test/src,test,' | ./node_modules/coveralls/bin/coveralls.js
which is basically doing 4 sed commands in sequence
sed 's,SF:,SF:src/,'
sed s',SF.*test.*,SF:test//&,'
sed s',/SF:,,'
sed s',test/src,test,'
my question is if there is a way to do with this one sed command, or use another osx/linux command line tool

Initially put "src/" after every ":" and then if "test" is found on the line replace "src" with "test":
$ sed 's,:,:src/,;/test/s,src,test,' file
SF:test/Vis/test-Guid.coffee
SF:src/Vis/Guid.coffee
SF:test/Vis/test-Vis-Edge.coffee
SF:src/Vis/Vis-Edge.coffee

You could put all the sed commands in a file, one line per command, and just use "sed -e script". But if you just want it on a single command-line, separate with semicolons. This works for me:
sed 's,SF:,SF:src/,;s,SF.*test.*,SF:test//&,;s,SF:,,;s,test/src/,test,'

sed command
sed '\#test#!{s#SF:Vis/#SF:src/Vis/#g};\#SF:Vis/test#{s#SF:Vis/test#SF:test/Vis/test#g};' my_file

Here is an awk version:
awk -F: '/SF/ {$0=$1FS (/test/?"test/":"src/")$2}1' file
SF:test/Vis/test-Guid.coffee
SF:src/Vis/Guid.coffee
SF:test/Vis/test-Vis-Edge.coffee
SF:src/Vis/Vis-Edge.coffee
How it works:
awk -F: ' # Set field separator to ":"
/SF/{ # Does line start with "SF"?
$0=$1FS (/test/?"test/":"src/")$2 # Recreat String by adding "test" if line contains "test", else "src"
}
1 # Print all lines
' file # read the file

using sed for substitution in next line

I am working on sed command to translate some text into another text.
cat text
<strong>ABC
</strong>
Commnad:
sed -e 's|<strong>(.*?)</strong>|//textbf{1}|g'
Expected Outcome: \textbf{ABC}
but using above script i cannot convert it into expected output since there is new line between the tags. How to handle such cases?

This might work for you (GNU sed):
sed -r '$!N;s|(<)(strong>)([^\n]*)\n\s*\1/\2|//textbf{\3}|;P;D' file
or
sed '$!N;s|\(<\)\(strong>\)\([^\n]*\)\n\s*\1/\2|//textbf{\3}|;P;D' file

sed -e 'N;s|<strong>\(.*\?\)\n</strong>|\/textbf{\1}|g'
as said by CodeGnome and David Ravetti, the N flag allows for multi-line patterns.

modify a line using sed

I need to used sed for following requirment using sed
I have one string as $str and I need to replace blow line in a file
abh{1..$abh} cdf_$ghu,xyz * abh{}.$xy
New modified line should be as below
abh{1..$abh} cdf_$ghu,$str * abh{}.$xy
Note "xyz" can be any arbitrary value. Could you please tell me how to do using sed in one liner.
sed 's/\(^\s*abh{1..$abh}\s*\)\(.*xyz\)/\1/' file.txt
but still does not work. Any help would be appreciated.

Try this:
$ sed 's|\(\S\+\s\+[^,]\+,\)\S\+\(\s\+.*\)|\1$str\2|' file.txt
abh{1..$abh} cdf_$ghu,$str * abh{}.$xy
Or even more simple:
$ sed 's|,\S\+|,$str|' example.txt

echo 'abh{1..$abh} cdf_$ghu,xyz * abh{}.$xy' | sed 's/\(.*\$ghu,\)\(.*\)\( .*\)/\1\$str\3/g'