17 – Unix | Linux Shell – Search Pattern | Text | String from fille – egrep Command

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Unix Shell Commands Beginner Tutorials

Search text | Search String | Search Pattern | grep command | Unix | Linux Shell Script Command – Hindi

ch+ Matches one or more occurrences of character ch
ch? Matches zero or one occurrence of character ch
exp1|exp2 Matches expression exp1 or exp2
(x1|x2)x3 Matches expression x1x3 or x2x3

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