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Linux Text and File Operations Cheat Sheet/Show first 20 lines

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Section: Viewing Files

Show first 20 lines

bash
bash
head -20 app.log

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Output a file to standard output.
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Open file with pager
Scroll through a file interactively.
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Follow appended log lines
Watch file growth in real time.
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Compare two files in patch-friendly format.
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Split a large file into 100 MB parts.
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