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安裝中文字典英文字典辭典工具!
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- unix - What does sed -i option do? - Stack Overflow
I'm debugging a shell script and trying to find out the task performed by the following command: sed -i '1,+999d' home org_user data txt I need to change this command as its failing with the foll
- unix - sed edit file in-place - Stack Overflow
How do I edit a file in a single sed command? Currently, I have to manually stream the edited content into a new file and then rename the new file to the original file name I tried sed -i, but my
- What is the purpose of -e in sed command? - Unix Linux Stack Exchange
In your example sed 's foo bar ' and sed -e 's foo bar ' are equivalent In both cases s foo bar is the script that is executed by sed The second option is more explicit, but that is probably not the reason that you often see -e used The reason for that is that -e makes it possible to use more than one script with the same invocation of sed
- regular expression - Using sed to find and replace complex string . . .
Learn how to use sed with regex for complex string replacements in Unix systems
- shell - sed command in bash - Stack Overflow
54 sed is the Stream EDitor It can do a whole pile of really cool things, but the most common is text replacement The s,%,$,g part of the command line is the sed command to execute The s stands for substitute, the , characters are delimiters (other characters can be used; , : and @ are popular)
- linux - sed with special characters - Stack Overflow
How can I make sed ignore special charactars, I tried adding back slash before special characters, but maybe I got it wrong, can some one show me an example? Here is what i want :
- What is sed and what is it used for? - Ask Ubuntu
From Sed man page: Sed is a stream editor A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline) While in some ways similar to an editor which permits scripted edits (such as ed), sed works by making only one pass over the input(s), and is consequently more efficient But it is sed's ability to filter text in a pipeline which
- What does \\1 in sed do? - Stack Overflow
42 I found this question really relevant to what I wanted: Parsing using awk or sed in Unix, however I can't figure out what the following does: 's \([,=]\) \1 g' I know that g does a global substitution but really can't understand what's going on within the context of the question
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