This question already has an answer here:
sed fails with "unknown option to `s'" error [closed]
(1 answer)
Closed 1 year ago.
I have a file I want to edit.
at the beginning, I take another file, I add for each line "\0A", I delete the end-of-line characters, and I put it in an OV variable
OV=$(cat certificate_file | sed 's/$/\\OH/' | tr -d '\n') #Add \OH + delete end of
line caracter
Now I want to replace the contents of the config_var1= variable in the conf file, with what is in OV
I tried to use this command:
sed -i -r "s:config_var1=.*:config_var1=$OV:g" config_file
but it doesn’t work because I have a line like this in the OV vriable :
8d:c8:c7:r5:m8:e1:ub:f3:09:2s:c1:5a:7a:b7:c0:cb
so i got this error :
sed: -e expression #1, char 2239: unknown option to `s'
sed can use any character as a separator between the regex and the replacement. Choose some character that does not appear in $OV. For example:
sed -i -r "s#config_var1=.*#config_var1=$OV#g" config_file
If all of the characters are used and your script is running on Bash (non-POSIX), you can use substitution while expanding the variable and replacing the delimiter to escape it with the ${var/exp/subst} syntax. If your delimiter is #, you should do it like this: ${OV/#/\\#}. Note the double backslash to display a literal backslash.
This question already has answers here:
How to insert strings containing slashes with sed? [duplicate]
(11 answers)
Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms
(10 answers)
Closed 3 years ago.
I am trying to eliminate everything before and after the JSON contained in a specific part of a webpage so I can send that to a PHP script. I've tried a number of ways to get rid of the container content but all of them so far have failed, including one method that has worked in the exact same syntax for related purposes:
The characters that are between the two asterisks (**) at the beginning and end I need removed:
**var songs = [**{"timestamp":1555176393000,"title":"Enter Sandman","trackId":"ba_5cbb546d-5c1c-490e-9908-761b89dd5166","artist":"Metallica","artistId":"52_65f4f0c5-ef9e-490c-aee3-909e7ae6b2ab","album":"Metallica","albumId":"d0_6e729716-c0eb-3f50-a740-96ac173be50d","npe_id":"3cc5fe24d0ffcbb9152d861f27ae801660"},{"timestamp":1555176702000,"title":"Start Me Up","trackId":"76_d0b86399-11e5-4d11-b4fe-ce4b3f9a4736","artist":"The Rolling Stones","artistId":"1b_b071f9fa-14b0-4217-8e97-eb41da73f598","album":"Tattoo You","albumId":"d1_778b345b-e8a1-4054-b5ba-c611d3fda421","npe_id":"f0dc0ab12ef99a6e0087cad12886509b7b"},{"timestamp":1555176909000,"title":"Fame","trackId":"4e_cdef4b88-7314-431a-9cdd-d457296a65b7","artist":"David Bowie","artistId":"ab_5441c29d-3602-4898-b1a1-b77fa23b8e50","album":"Best of Bowie","albumId":"21_3709ee5a-d087-370f-afb4-f730092c7a94","npe_id":"2b8b3a170baa77125891d72a0474d3343a"},{"timestamp":1555177158000,"title":"Rocket","trackId":"34_aa5b9053-849e-4788-972f-7941303175b6","artist":"Def Leppard","artistId":"c1_7249b899-8db8-43e7-9e6e-22f1e736024e","album":"Hysteria","albumId":"06_de5cf055-d875-41f8-9261-89b11b7ff145","npe_id":"0d87b580f140a85feaebc7d77f75db2a3d"},{"timestamp":1555177826000,"title":"Mama, I'm Coming Home","trackId":"cb_e5b09171-9527-4d24-8ab6-1e922fdd66d3","artist":"Ozzy Osbourne","artistId":"4b_8aa5b65a-5b3c-4029-92bf-47a544356934","album":"No More Tears","albumId":"66_8f3d5a65-036c-3260-b9bb-36f1d0d80c11","npe_id":"6b766464fe945f275bf478192dcd33cfdc"},{"timestamp":1555178076000,"title":"Gold Dust Woman","trackId":"a4_ef8c1eca-f344-4bfb-82ea-763aa8aeaad9","artist":"Fleetwood Mac","artistId":"66_bd13909f-1c29-4c27-a874-d4aaf27c5b1a","album":"2010-01-08: The Rock Boat X, Lido Deck, Carnival Inspiration","albumId":"80_4f229af0-2afc-431d-87ff-f7f6af66268e","npe_id":"f6417d98fd1fefcca227d82a8ac9b84197"},{"timestamp":1555178363000,"title":"With or Without You","trackId":"79_6b9a509f-6907-4a6e-9345-2f12da09ba4b","artist":"U2","artistId":"26_a3cb23fc-acd3-4ce0-8f36-1e5aa6a18432","album":"The Joshua Tree","albumId":"0c_d287c703-5c25-3181-85d4-4d8c1a7d8ecd","npe_id":"23b19420196b28e2156ecda87c11b882e0"},{"timestamp":1555178654000,"title":"Who Are You","trackId":"7d_431b9746-c6ec-489d-9199-c83676171ae8","artist":"The Who","artistId":"22_f2fa2f0c-b6d7-4d09-be35-910c110bb342","album":"Who Are You","albumId":"40_b255da2c-6583-35f9-95e3-ef5f9c14e868","npe_id":"e01896f74f24968bb7727eaafbf6250b8f"},{"timestamp":1555179031000,"title":"Authority Song","trackId":"31_f5ff19f7-95f3-4a22-8996-3788c264e0b8","artist":"John Mellencamp","artistId":"4d_0aad6b52-fd93-4ea4-9c5d-1f66e1bc9f0a","album":"Words & Music: John Mellencamp's Greatest Hits","albumId":"9e_1240c510-7015-4484-baac-ce17f5277ea1","npe_id":"244785e3b1d75effb9fdecbb6df76b009f"},{"timestamp":1555179256000,"title":"Touch Me","trackId":"9d_1dd1f86c-2120-45f3-ac9f-3c87257fe414","artist":"The Doors","artistId":"13_9efff43b-3b29-4082-824e-bc82f646f93d","album":"The Soft Parade","albumId":"db_c29d7552-b5df-42b8-aae7-03d1e250cb3a","npe_id":"1b5d155eb2eeee6fc1fdb50a94b100669c"}]**; <ol class="songs tracks"></ol>**
Here is the shell script which produces the above at present:
#!/bin/sh
curl -v --silent http://player.listenlive.co/41851/en/songhistory >/var/tmp/wklh$1.a.txt
pta=`cat /var/tmp/wklh$1.a.txt | grep songs > /var/tmp/wklh$1.b.txt`
ptb=`cat /var/tmp/wklh$1.b.txt | sed -n -e '/var songs = /,/; <span title/ p' > /var/tmp/wklh$1.c.txt`
ptc=`cat /var/tmp/wklh$1.c.txt | grep songs > /var/tmp/wklh$1.d.txt`
#ptd=`cat /var/tmp/wklh$1.d.txt | sed -i 's/var songs = [//g' /var/tmp/wklh$1.d.txt`
#ptd=`cat /var/tmp/wklh$1.d.txt | sed -i 's/}]; <ol class="songs tracks"></ol>//g' /var/tmp/wklh$1.d.txt`
json=`cat /var/tmp/wklh$1.d.txt`
echo $json
metadata=`php /etc/asterisk/scripts/music/wklh.php $json`
echo $metadata
The commented out lines are what I was trying to use to remove the extraneous content, since it is predictable every time. However, when uncommented, I get the following errors:
sed: -e expression #1, char 18: unterminated `s' command
sed: -e expression #1, char 38: unknown option to `s'
I've examined my sed statement, but I can't find any discrepancies between how I use it here and in other working shell scripts.
Is there actually a syntax error here (or unallowed characters)? Or is there a better way I can do this?
Your shell script has serious issues.
The syntax
variable=`commands`
takes the output of commands and assigns it to variable. But in every case, you are redirecting all output to a file; so the variable will always be empty.
Unless you need the temporary files for reasons which are not revealed in your question (such as maybe being able to check how many bytes of output you got in each temporary file for a monitoring report, or something like that), a pipeline would be much superior.
#!/bin/sh
curl -v --silent http://player.listenlive.co/41851/en/songhistory |
grep songs |
sed -n -e '/var songs = /,/; <span title/ p' |
grep songs |
php /etc/asterisk/scripts/music/wklh.php
This also does away with the useless uses of cat and the useless uses of echo and so also coincidentally removes the quoting errors. The grep x | sed -n 's/y/z/p' is a useless use of grep which can easily be refactored to sed -n '/x/s/y/z/p'
Square brackets are special to sed. Simply escape them.
s/var songs = \[//g
If you use slash / as the regex delimiter, it becomes special. Either escape it or use a different delimiter.
s/}]; <ol class="songs tracks"><\/ol>//g
s|}]; <ol class="songs tracks"></ol>||g
if your data in 'd' file, try gnu sed,
sed -Ez 's/^\*\*[^\*]+\*\*(.+)]\*\*[^\*]+\*\*\s*$/\1/' d
remove last ] too, to correctly balance the Json
I'm trying to change #!/usr/bin/python to #!/usr/bin/python2.6
I've tried the following command line:
sed -i -e 's/.#!/usr/bin/python.*/#!/usr/bin/python2.6/' /usr/bin/yum
...which returns the following error:
sed: -e expression #1, char 11: unknown option to `s'
I can't find a good answer anywhere on Google.
Thanks in advance.
You're getting this error because sed interprets s/.#!/usr/b as your first search & replace command, and b isn't a valid flag for the command.
Indeed, the syntax of these commands is s<delimiter><search pattern><delimiter><replace><delimiter><flags>, where the most widely used <delimiter> is /.
You could escape the / in your search pattern and replace string so they aren't interpreted as the delimiter, however since you've got a lot of them I would suggest using another delimiter.
For example, using + as a delimiter your sed command would become sed -i -e 's+.#!/usr/bin/python.*+#!/usr/bin/python2.6+'.
As a side-note, the first . in your command is probably a mistake as the shebang should be written directly at the beginning of the files it appears in.
I assume that your line is first line from your file. With GNU sed:
sed '1s/python$/&2.6/' file
If you want to edit your file "in place" use sed's option -i.
This question already has an answer here:
SED command not being run from bash script
(1 answer)
Closed 8 years ago.
I'm trying to print a new line after 'string' using the variable THIS into file.
sed -i '' 'string/a\
${THIS}
' "${f}"
It prints "${THIS}" into file, literally. I've tried using double quotes for sed but that leads to error message:
"sed: 1: "...": command a expects \ followed by text"
I've also tried to Google this and have been browsing this excellent forum but couldn't find anything.
Any idea, please? Thank you!
It should look like this:
THIS="foo"
sed 's/string/string\n'"${THIS}"'/g' file.txt
Btw, if you are unsure I encourage you to be careful using the -i option. I would play with the sed command until I'm sure and only then use -i (which will overwrite the original file)
If you are replacing a literal string (no regex), the replace command might be better than sed here:
replace string "string"$'\n'"${THIS}" file.txt
I am trying to generate documentation of the Octave API using doxygen. However, doxygen recognizes only comments after /// to be documentation and the comment style in Octave is to use only //. I decided to run a shell command to change this and found this
sed -i 's/old-word/new-word/g' *.txt
from here. When I test the command using
sed -i 's/////// /g' *.txt
or
sed -i 's/"//"/"/// "/g' *.txt
I get the error:
sed: -e expression #1, char 5: unknown option to `s'
or
sed: -e expression #1, char 6: unknown option to `s'
respectively. How do I correctly use sed to replace // with ///?
Alternatively, is a simpler way, such as, for example, opening all the files simuntaniously in some IDE and refactoring.
Try:
sed -i 's+//+///+g' *.txt
It is unlucky to use / as a delimiter if you need to substitute /// for // xD.
Use strrep() (string replace).
I am assuming variable "s" contains your string containing "//". Add the following code in your script:
strrep (s,"//","///");
In this case / acts as escape sequence for / and // .