Given a file file1 with this text:
Anah, Julio, 5-3871 Ghin, Ermen, 4-4123 Jones, Thomas, 1-4122 Solor, R]ehard, 5-2522 Salazar, Hex, 8-2321 Jones, Tommy, 5-2911 Kar, Rt, 3-3633.
I want to use egrep to search all the numbers that start with 5 and end with 1.
I have tried:
grep '5' '1' file1
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Answer
This regex will work
egrep -o \b5[0-9-]*1\b inputfile
Regex Breakdown
\b # word boundary 5 #Number starts with 5 [0-9-]* #Any combination of 0-9 and - 1 # Ends with 1 \b Word boundary