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• script.sh

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g0101_0200.s0193_valid_phone_numbers.script.sh Maven / Gradle / Ivy

# Read from the file file.txt and output all valid phone numbers to stdout.
# #Easy #Shell
egrep '^[0-9]{3}-[0-9]{3}-[0-9]{4}$|^\([0-9]{3}\)\s[0-9]{3}-[0-9]{4}$' file.txt