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Unix command-line tools

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Eric Wilson
Eric Wilson
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find, grep, sed, & awk Increasing productivity with command-line tools.
Unix philosophy ,[object Object],[object Object]
Why learn command-line utils? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Part 0 – pipes and xargs
Some simple programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Putting programs together ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part 1: find
Basic find examples ,[object Object]
Basic find examples ,[object Object],[object Object]
Basic find examples ,[object Object],[object Object],[object Object]
Basic find examples ,[object Object],[object Object],[object Object],[object Object]
Basic find examples ,[object Object],[object Object],[object Object],[object Object],[object Object]
Basic find examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Find and do stuff ,[object Object]
Find and do stuff ,[object Object],[object Object],[object Object],[object Object]
Find and do stuff ,[object Object],[object Object],[object Object],[object Object],[object Object]
-exec or | xargs ? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Find by type ,[object Object],[object Object]
Find by type ,[object Object],[object Object],[object Object],[object Object]
Find by type ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
By modification time ,[object Object],[object Object]
By modification time ,[object Object],[object Object],[object Object],[object Object]
By modification time ,[object Object],[object Object],[object Object],[object Object],[object Object]
By modification time, II ,[object Object],[object Object],[object Object]
By modification time, III ,[object Object],[object Object]
By modification time, III ,[object Object],[object Object],[object Object],[object Object],[object Object]
Find by permissions ,[object Object],[object Object],[object Object],[object Object]
Find by size ,[object Object],[object Object]
Find by size ,[object Object],[object Object],[object Object],[object Object]
find summary: ,[object Object]
find summary: ,[object Object],[object Object]
find summary: ,[object Object],[object Object],[object Object]
Part 2: grep ,[object Object],[object Object],[object Object]
Basic usage: ,[object Object]
Basic usage: ,[object Object],[object Object]
Basic usage: ,[object Object],[object Object],[object Object]
Basic usage: ,[object Object],[object Object],[object Object],[object Object]
Basic usage: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Common grep options ,[object Object],[object Object]
Common grep options ,[object Object],[object Object],[object Object],[object Object]
Common grep options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filtering results ,[object Object],[object Object],[object Object]
Filtering results ,[object Object],[object Object],[object Object],[object Object],[object Object]
Filtering results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More grep options ,[object Object],[object Object]
More grep options ,[object Object],[object Object],[object Object],[object Object]
More grep options ,[object Object],[object Object],[object Object],[object Object],[object Object]
Example ,[object Object]
Example ,[object Object],[object Object],[object Object],[object Object]
grep summary: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part 3: sed ,[object Object],[object Object]
sed command #1: s ,[object Object]
sed command #1: s ,[object Object],[object Object]
sed command #1: s ,[object Object],[object Object],[object Object]
sed command #1: s ,[object Object],[object Object],[object Object],[object Object]
sed command #1: s ,[object Object],[object Object],[object Object],[object Object],[object Object]
Typical uses ,[object Object],[object Object]
Typical uses ,[object Object],[object Object],[object Object]
Typical uses ,[object Object],[object Object],[object Object],[object Object]
Typical uses ,[object Object],[object Object],[object Object],[object Object],[object Object]
Real life example I ,[object Object]
Real life example I ,[object Object],[object Object],[object Object],[object Object]
Real life example II ,[object Object],[object Object]
Real life example II ,[object Object],[object Object],[object Object],[object Object]
Real life example III ,[object Object]
Real life example III ,[object Object],[object Object],[object Object]
Real life example III ,[object Object],[object Object],[object Object],[object Object],[object Object]
Capturing groups ,[object Object]
Capturing groups ,[object Object],[object Object]
Capturing groups ,[object Object],[object Object],[object Object]
Capturing groups ,[object Object],[object Object],[object Object],[object Object]
Capturing groups ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise: formatting phone #. ,[object Object]
Exercise: formatting phone #. ,[object Object],[object Object],[object Object]
Exercise: formatting phone #. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise: trim whitespace ,[object Object]
Exercise: trim whitespace ,[object Object],[object Object]
Exercise: trim whitespace ,[object Object],[object Object],[object Object]
Exercise: trim whitespace ,[object Object],[object Object],[object Object],[object Object]
Exercise: trim whitespace ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise: trim whitespace ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Add comment line to file with s : ,[object Object]
Add comment line to file with s : ,[object Object],[object Object],[object Object],[object Object],[object Object]
Shebang! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
sed command #2: d ,[object Object],[object Object]
sed command #2: d ,[object Object],[object Object],[object Object],[object Object]
sed command #2: d ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More delete examples: ,[object Object]
More delete examples: ,[object Object],[object Object]
More delete examples: ,[object Object],[object Object],[object Object]
More delete examples: ,[object Object],[object Object],[object Object],[object Object]
More delete examples: ,[object Object],[object Object],[object Object],[object Object],[object Object]
Real life example II, ctd ,[object Object],[object Object]
Real life example II, ctd ,[object Object],[object Object],[object Object],[object Object]
sed summary ,[object Object]
sed summary ,[object Object],[object Object]
sed summary ,[object Object],[object Object],[object Object]
sed summary ,[object Object],[object Object],[object Object],[object Object]
Part 4: awk ,[object Object],[object Object],[object Object]
Simple awk programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example server.log file: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Built-in variables: NF , NR ,[object Object],[object Object],[object Object]
Built-in variables: NF , NR ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Structure of an awk program ,[object Object]
Structure of an awk program ,[object Object],[object Object]
Structure of an awk program ,[object Object],[object Object],[object Object]
Structure of an awk program ,[object Object],[object Object],[object Object],[object Object],[object Object]
Structure of an awk program ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Changing delimiter ,[object Object]
Changing delimiter ,[object Object],[object Object],[object Object]
Changing delimiter ,[object Object],[object Object],[object Object],[object Object],[object Object]
Get date out of server.log ,[object Object],[object Object]
Get date out of server.log ,[object Object],[object Object],[object Object],[object Object]
Get date out of server.log ,[object Object],[object Object],[object Object],[object Object],[object Object]
Get date out of server.log ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Get date out of server.log ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Maintaining state in awk ,[object Object]
Maintaining state in awk ,[object Object],[object Object],[object Object]
Maintaining state in awk ,[object Object],[object Object],[object Object],[object Object]
Maintaining state in awk ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Maintaining state in awk ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
One more example ,[object Object],[object Object]
One more example ,[object Object],[object Object],[object Object]
One more example ,[object Object],[object Object],[object Object],[object Object]
Example, ctd. ,[object Object]
Example, ctd. ,[object Object],[object Object]
Example, ctd. ,[object Object],[object Object],[object Object]
awk summary ,[object Object]
awk summary ,[object Object],[object Object]
awk summary ,[object Object],[object Object],[object Object]
awk summary ,[object Object],[object Object],[object Object],[object Object]
awk summary ,[object Object],[object Object],[object Object],[object Object],[object Object]
awk summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Unix command-line tools

  • 1. find, grep, sed, & awk Increasing productivity with command-line tools.
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