Review of Linux commands sed and awk

In the previous record, the use of isringstream was discussed, but its default separator is a space, which limits its scope of use. However, we can use the sed command in Linux to replace and adapt, and change the separator in the source file Replace with spaces.
The awk command is also powerful and useful when extracting data fields.
Without using a database, using these commands to process data files such as csv files is very convenient and practical

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Origin blog.csdn.net/aaajj/article/details/104117004