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slntopp/BASH.md

Created January 28, 2022 12:53
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Some well-known bash tricks I tend to forget sometimes
Raw
BASH.md

Files Manipulation

Editing

Filter file for unique lines

awk '!a[$0]++' file

Searching

Show 2 lines before and 1 after in grep

echo "" | grep -B 2 -A 1 "pattern"

Extract by pattern (mac) in grep

echo "" | grep -Eo "regex"
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