Unix commands

2.3. Searching with grep

grep Command grep "pattern" filename

command | grep "pattern"

Search Patterns

beginning of line ^

end of line $

any single character .

single character in list or range […]

character not in list or range [^…]

zero or more of preceding char. or pattern *

zero or more of any character .*

escapes special meaning \

3. C-Shell Features.

3.1 History Substitution

Repeat Previous Command !!

Commands Beginning with str !str

Commands Containing str !?str[?]

All Arguments to Prev. Command !*

Word Designators

All Arguments :*

Last Argument :$

First Argument :^

n'th Argument :n