54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
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# lsseq
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A simple filter utility for viewing long listings of text that have
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either repeating lines or sequential lines. Usage is similar to "uniq",
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except that in addition to condensing duplicates, it condenses runs
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of incrementing or decrementing numbered lines.
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In order to be regarded as a run, lines must contain a single block of
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decimal numerals (with or without zero-padding), which increase by one
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step on each line. It does not matter if there are additional number blocks
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that don't change, and the changing number can appear anywhere in the line.
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Although there is nothing about the program that requires it to be used
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on file listings, it was created to quickly asses PNG or EXR streams
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generated by Blender rendering processes.
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Currently has no switches or controls, and very few features.
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I also created it as a learning project for **Eclipse/PyDev** and integration
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with **Github**, so this is more of a learning project, although it is kind
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of handy.
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Usage example:
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$ ls my_pngstream*.png | lsseq
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If the listing looks like this:
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my_pngstream-f00001.png
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my_pngstream-f00002.png
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my_pngstream-f00003.png
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my_pngstream-f00004.png
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my_pngstream-f00005.png
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my_pngstream-f00010.png
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my_pngstream-f00012.png
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The output will look like this:
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my_pngstream-f00001.png
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... (5) +
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my_pngstream-f00005.png
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my_pngstream-f00010.png
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my_pngstream-f00012.png
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For very long runs, this will be MUCH more compact and readable.
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# TODO
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Would like to add option parsing and some options for ignoring parts of
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the input lines. This would be handy for use with "ls -l" for example,
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to ignore the changing filesize and data numbers, which would currently
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foul the run-detection.
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