g0101_0200.s0193_valid_phone_numbers.script.sh Maven / Gradle / Ivy
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Java-based LeetCode algorithm problem solutions, regularly updated
# Read from the file file.txt and output all valid phone numbers to stdout.
# #Easy #Shell #2022_06_28_Time_112_ms_(75.54%)_Space_3.1_MB_(53.89%)
egrep '^[0-9]{3}-[0-9]{3}-[0-9]{4}$|^\([0-9]{3}\)\s[0-9]{3}-[0-9]{4}$' file.txt