sed: Examples

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1 7 Some Sample Scripts
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1 Here are some 'sed' scripts to guide you in the art of mastering 'sed'.
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1 Useful one-liners:
· Joining lines
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1 Some exotic examples:
· Centering lines
· Increment a number
· Rename files to lower case
· Print bash environment
· Reverse chars of lines
· Text search across multiple lines
· Line length adjustment
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1 Emulating standard utilities:
· tac                             Reverse lines of files
· cat -n                          Numbering lines
· cat -b                          Numbering non-blank lines
· wc -c                           Counting chars
· wc -w                           Counting words
· wc -l                           Counting lines
· head                            Printing the first lines
· tail                            Printing the last lines
· uniq                            Make duplicate lines unique
· uniq -d                         Print duplicated lines of input
· uniq -u                         Remove all duplicated lines
· cat -s                          Squeezing blank lines
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