https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/ Life is our precious gift Fri, 15 Jan 2010 04:38:26 +0000 hourly 1 https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-889 Fri, 15 Jan 2010 04:38:26 +0000 http://v2.vavai.net/?p=977#comment-889 @Pascal,
Thank you. I’m not really familiar with Perl but I would love to try your code. 🙂

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-887 Thu, 07 Jan 2010 15:56:19 +0000 http://v2.vavai.net/?p=977#comment-887 As Diego already said, it is a lot easier to use the “-i” in-place editing flag, because it does it properly (locking, really temporary/random filename, …). If not, it is a lot safer to use “mktemp” instead of a fixed filename.
But be aware that those “words” are actually regular expressions, and that you cannot use e.g. “/” in the word to be replaced or the replacement.
I would rather resort to Perl, because it has the ability to escape complete strings in regular expressions. Oh, and Perl also has the -i flag 🙂
perl -pi -e ‘s/Qword1E/Qreplacement1E/g;s/Qword2E/Qreplacement2E/g’ file1 file2 file3

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-888 Thu, 07 Jan 2010 15:56:19 +0000 http://v2.vavai.net/?p=977#comment-888 As Diego already said, it is a lot easier to use the “-i” in-place editing flag, because it does it properly (locking, really temporary/random filename, …). If not, it is a lot safer to use “mktemp” instead of a fixed filename.
But be aware that those “words” are actually regular expressions, and that you cannot use e.g. “/” in the word to be replaced or the replacement.
I would rather resort to Perl, because it has the ability to escape complete strings in regular expressions. Oh, and Perl also has the -i flag 🙂
perl -pi -e ‘s/Qword1E/Qreplacement1E/g;s/Qword2E/Qreplacement2E/g’ file1 file2 file3

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-885 Thu, 07 Jan 2010 12:04:19 +0000 http://v2.vavai.net/?p=977#comment-885 Hi Diego,
Thanks for the suggestion.

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-886 Thu, 07 Jan 2010 12:04:19 +0000 http://v2.vavai.net/?p=977#comment-886 Hi Diego,
Thanks for the suggestion.

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-883 Thu, 07 Jan 2010 10:52:58 +0000 http://v2.vavai.net/?p=977#comment-883 On modern GNU sed (that is, from at least the last five years) – and you’re already assuming GNU sed when you use multiple -e parameters – you can use the -i parameter to do “inline replace”.
This way you don’t have to copy the file to a temporary version and then back again for the replacement, nor you really need to grep for the string: just use sed -i -e ‘…’ -e ‘…’ /list/of/files/*.foo

]]> https://www.vavai.net/bash-script-for-replace-multiple-words-in-a-multiple-file/#comment-884 Thu, 07 Jan 2010 10:52:58 +0000 http://v2.vavai.net/?p=977#comment-884 On modern GNU sed (that is, from at least the last five years) – and you’re already assuming GNU sed when you use multiple -e parameters – you can use the -i parameter to do “inline replace”.
This way you don’t have to copy the file to a temporary version and then back again for the replacement, nor you really need to grep for the string: just use sed -i -e ‘…’ -e ‘…’ /list/of/files/*.foo

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