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How to print matched regex pattern using awk?
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Regexp Java for password validation
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new Regexp doesn't work
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Using awk to print part of one column plus additional columns
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How to restrict awk math output to 2 decimal places
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How to compare two strings in dot separated version format in Bash?
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JavaScript RegExp objects
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If column matches another file, print every line with match (awk/grep)
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How to grep lines which does not begin with "#" or ";"?
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Cannot use awk pipe output
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Print lines between (and including) two patterns
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Shell test to find a pattern in a string
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How do I print all lines of a file with duplicate values in a certain column
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Bash regular expression pattern matching spaces, within double brackets test, using "~=" operator
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How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
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Shell, howto extract letters from $line1="Test this... test this!", and print one by one