Text
Multi-Lines Text
Echo Command Using the -e option can create simple multi-line text. echo -e 'aa\nbb' aa bb He...
Regular Expression
Regular Expressions (regex) can be divided into the following categories based on different stand...
SED
Stream Editor, a stream text processor, authored by Lee E. McMahon. Basic Syntax sed [OPTIONS] 'c...
GAWK 1
Gnu Awk Gawk is the GNU version of the text processing tool. In most GNU/Linux distributions, Ga...
GAWK 2
Regular Expression gawk defaults to using ERE mode. Basic Usage First, create the foo text file....