fc
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fc [-e ename] [-nlr] [first] [last]
fc -s [pat=rep] [command]
Fix Command. In the first form, a range of commands from first to
last is selected from the history list. Both first and
last may be specified as a string (to locate the most recent
command beginning with that string) or as a number (an index into the
history list, where a negative number is used as an offset from the
current command number). If last is not specified it is set to
first. If first is not specified it is set to the previous
command for editing and 16 for listing. If the `-l ' flag is
given, the commands are listed on standard output. The `-n ' flag
suppresses the command numbers when listing. The `-r ' flag
reverses the order of the listing. Otherwise, the editor given by
ename is invoked on a file containing those commands. If
ename is not given, the value of the following variable expansion
is used: ${FCEDIT:-${EDITOR:-vi}} . This says to use the
value of the FCEDIT variable if set, or the value of the
EDITOR variable if that is set, or vi if neither is set.
When editing is complete, the edited commands are echoed and executed.
In the second form, command is re-executed after each instance
of pat in the selected command is replaced by rep.
A useful alias to use with the fc command is r='fc -s' , so
that typing `r cc ' runs the last command beginning with cc
and typing `r ' re-executes the last command (see Aliases).
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history
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history [-c] [n]
history [-anrw] [filename]
history -ps arg
Display the history list with line numbers. Lines prefixed with
with a `* ' have been modified. An argument of n says
to list only the last n lines. Options, if supplied, have
the following meanings:
-w
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Write out the current history to the history file.
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-r
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Read the current history file and append its contents to
the history list.
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-a
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Append the new
history lines (history lines entered since the beginning of the
current Bash session) to the history file.
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-n
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Append the history lines not already read from the history file
to the current history list. These are lines appended to the history
file since the beginning of the current Bash session.
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-c
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Clear the history list. This may be combined
with the other options to replace the history list completely.
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-s
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The args are added to the end of
the history list as a single entry.
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-p
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Perform history substitution on the args and display the result
on the standard output, without storing the results in the history list.
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When the `-w ', `-r ', `-a ', or `-n ' option is
used, if filename
is given, then it is used as the history file. If not, then
the value of the HISTFILE variable is used.
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