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I have an error on MAC OS X when I'm using sed, which looks like so:

sed -i '' '/user_pref("mail.identity.id1.reply_on_top", 1);/ a\
user_pref("mail.identity.id1.sig_file", "/Users/nicolas.hulot/Library/Mail/V2/MailData/Signatures/signature.html");
user_pref("mail.identity.id1.sig_file-rel", "[ProfD]../../../Mail/V2/MailData/Signatures/signature.html");
' ~/Library/Thunderbird/Profiles/*.default/prefs.js

When I change the second and third line by another string like 'abcdefgh...' it's good, but with this string which has a lot of specials characters it's too wrong.

The error which appears is:

sed: 3: "/user_pref("mail.identi ...": invalid command code u

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1 Answer 1

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2

The newline for sed's append is break it, so you have to backslash newline or sustitute by \n symbol: 

sed -i '' '/user_pref("mail.identity.id1.reply_on_top", 1);/ a\
user_pref("mail.identity.id1.sig_file", "/Users/illias.seba/Library/Mail/V2/MailData/Signatures/signature.html");\
user_pref("mail.identity.id1.sig_file-rel", "[ProfD]../../../Mail/V2/MailData/Signatures/signature.html");\
' ~/Library/Thunderbird/Profiles/*.default/prefs.js

or

sed -i '' '/user_pref("mail.identity.id1.reply_on_top", 1);/ a\
user_pref("mail.identity.id1.sig_file", "/Users/illias.seba/Library/Mail/V2/MailData/Signatures/signature.html");\nuser_pref("mail.identity.id1.sig_file-rel", "[ProfD]../../../Mail/V2/MailData/Signatures/signature.html");\n' ~/Library/Thunderbird/Profiles/*.default/prefs.js
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