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sed, a stream editor

4. Some Sample Scripts

Here are some sed scripts to guide you in the art of mastering sed.

Some exotic examples:

4.1 Centering Lines
4.2 Increment a Number
4.3 Rename Files to Lower Case
4.4 Print bash Environment
4.5 Reverse Characters of Lines

Emulating standard utilities:

4.6 Reverse Lines of Files		Reverse lines of files
4.7 Numbering Lines		Numbering lines
4.8 Numbering Non-blank Lines		Numbering non-blank lines
4.9 Counting Characters		Counting chars
4.10 Counting Words		Counting words
4.11 Counting Lines		Counting lines
4.12 Printing the First Lines		Printing the first lines
4.13 Printing the Last Lines		Printing the last lines
4.14 Make Duplicate Lines Unique		Make duplicate lines unique
4.15 Print Duplicated Lines of Input		Print duplicated lines of input
4.16 Remove All Duplicated Lines		Remove all duplicated lines
4.17 Squeezing Blank Lines		Squeezing blank lines