225 lines
3.0 KiB
HTML
225 lines
3.0 KiB
HTML
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>Chapter 18. Regular Expressions</H1
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>18.1. <A
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HREF="x17129.html"
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>A Brief Introduction to Regular Expressions</A
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></DT
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><DT
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>18.2. <A
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HREF="globbingref.html"
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>Globbing</A
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><P
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>To fully utilize the power of shell scripting, you need to
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master Regular Expressions. Certain commands
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and utilities commonly used in scripts, such
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as <A
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HREF="textproc.html#GREPREF"
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>grep</A
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>, <A
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HREF="moreadv.html#EXPRREF"
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>expr</A
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>, <A
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HREF="sedawk.html#SEDREF"
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>sed</A
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>
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and <A
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HREF="awk.html#AWKREF"
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>awk</A
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>, interpret and use REs. As of
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<A
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HREF="bashver3.html#BASH3REF"
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>version 3</A
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>, Bash has acquired its
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own <A
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HREF="bashver3.html#REGEXMATCHREF"
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>RE-match operator</A
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>:
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<B
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>=~</B
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>.</P
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