Difference between revisions of "History --help"

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<pre>
 
history --help
 
history: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]
 
    Display or manipulate the history list.
 
  
    Display the history list with line numbers, prefixing each modified
+
[[history]] --help
    entry with a `*'.  An argument of N lists only the last N entries.
+
history: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]
 +
    Display or manipulate the history list. 
 +
 +
    Display the history list with line numbers, prefixing each modified
 +
    entry with a `*'.  An argument of N lists only the last N entries.
 +
 +
    Options:
 +
      [[-c]] clear the history list by deleting all of the entries
 +
      -d offset delete the history entry at position OFFSET. Negative
 +
    offsets count back from the end of the history list
 +
 +
      [[-a]] [[append]] history lines from this session to the history file
 +
      -n read all history lines not already read from the history file
 +
    and append them to the history list
 +
      [[-r]] read the history file and append the contents to the history
 +
    list
 +
      -w write the current history to the history file
 +
 +
      -p perform history expansion on each ARG and display the result
 +
    without storing it in the history list
 +
      -s append the ARGs to the history list as a single entry
 +
 +
    If FILENAME is given, it is used as the history file.  Otherwise,
 +
    if HISTFILE has a value, that is used, else ~/.bash_history.
 +
 
 +
    If the HISTTIMEFORMAT variable is set and not null, its value is used
 +
    as a format string for strftime(3) to print the time stamp associated
 +
    with each displayed history entry.  No time stamps are printed otherwise.
 +
 +
    Exit Status:
 +
    Returns success unless an invalid option is given or an error occurs.
  
    Options:
 
      -c clear the history list by deleting all of the entries
 
      -d offset delete the history entry at position OFFSET. Negative
 
    offsets count back from the end of the history list
 
 
      -a append history lines from this session to the history file
 
      -n read all history lines not already read from the history file
 
    and append them to the history list
 
      -r read the history file and append the contents to the history
 
    list
 
      -w write the current history to the history file
 
 
      -p perform history expansion on each ARG and display the result
 
    without storing it in the history list
 
      -s append the ARGs to the history list as a single entry
 
 
    If FILENAME is given, it is used as the history file.  Otherwise,
 
    if HISTFILE has a value, that is used, else ~/.bash_history.
 
 
    If the HISTTIMEFORMAT variable is set and not null, its value is used
 
    as a format string for strftime(3) to print the time stamp associated
 
    with each displayed history entry.  No time stamps are printed otherwise.
 
 
    Exit Status:
 
    Returns success unless an invalid option is given or an error occurs.
 
</pre>
 
  
 
== See also ==
 
== See also ==

Latest revision as of 14:11, 25 January 2024

history --help
history: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]
    Display or manipulate the history list.  

    Display the history list with line numbers, prefixing each modified
    entry with a `*'.  An argument of N lists only the last N entries. 

    Options:
      -c	clear the history list by deleting all of the entries
      -d offset	delete the history entry at position OFFSET. Negative
    		offsets count back from the end of the history list 

      -a	append history lines from this session to the history file
      -n	read all history lines not already read from the history file
    		and append them to the history list
      -r	read the history file and append the contents to the history
    		list
      -w	write the current history to the history file 

      -p	perform history expansion on each ARG and display the result
    		without storing it in the history list
      -s	append the ARGs to the history list as a single entry 

    If FILENAME is given, it is used as the history file.  Otherwise,
    if HISTFILE has a value, that is used, else ~/.bash_history.
 
    If the HISTTIMEFORMAT variable is set and not null, its value is used
    as a format string for strftime(3) to print the time stamp associated
    with each displayed history entry.  No time stamps are printed otherwise.

    Exit Status:
    Returns success unless an invalid option is given or an error occurs.


See also[edit]

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