C H A P T E R 6 Environment
61
Command History
The 7190’s CLI records recently executed commands and allows you
to review them.

history <n>

With no parameter <n> specified, history displays the last ten
commands entered by the user. The integer <n> specifies the history
index number. When <n> is specified on the command line, the ten
commands executed before that of the specified index number are
displayed.

! <n> or h <n>

NOTE: You must include
a space between the “!” or
“h” and the history index
number.
Executes the command beginning at the specified history index
number.
Pipes
Any command can be piped to either grep <grepstring> or more.
•Output display of commands piped to grep is limited to lines
containing <grepstring>.
•Output of commands piped to more appears a page at a time for
easier readability.
•Pipes can be cascaded (typically with a final pipe to more).
Example: config sys info | grep telnet | more
•Multiple grep commands can be cascaded to search for multiple
words.
Example: config sys info | grep telnet | grep
port
NOTE: Do not enclose
the search target in
quotes.
Online Help
7190 provides online help in the following forms:
•Type help to describe help features.
•Type help ttychars to display a list of special terminal editing
characters.