Zsh 的历史太短了

当我在 Bash 中运行 history时，会得到大量的结果(1000 +)。但是，当我运行 history和 zsh shell 时，我只得到15个结果。这使得在 zsh 中抓取历史记录几乎毫无用处。 我的 .zshrc文件包含以下几行:

HISTFILE=~/.zhistory
HISTSIZE=SAVEHIST=10000
setopt sharehistory
setopt extendedhistory

我如何修复 zsh 使我的 shell 历史更有用？

更新

如果在 zsh 中调用 history 1，我将获得所有的历史记录，就像在 Bash 中使用 history一样。我可以使用别名命令来得到相同的结果，但是我想知道为什么 history在 zsh 和 Bash 中的行为不同。

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#set history size
export HISTSIZE=10000
#save history after logout
export SAVEHIST=10000
#history file
export HISTFILE=~/.zhistory
#append into history file
setopt INC_APPEND_HISTORY
#save only one command if 2 common are same and consistent
setopt HIST_IGNORE_DUPS
#add timestamp for each entry
setopt EXTENDED_HISTORY

this is my setting, and it work

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最佳答案

NVaughan (the OP) has already stated the answer in an update to the question: ABC0 behaves differently in ABC1 than it does in zsh:

In short:

  • zsh:
    • history lists only the 15 most recent history entries
    • history 1 lists all - see below.
  • bash:
    • history lists all history entries.

Sadly, passing a numerical operand to history behaves differently, too:

  • zsh:
    • history <n> shows all entries starting with <n> - therefore, history 1 shows all entries.
    • (history -<n> - note the - - shows the <n> most recent entries, so the default behavior is effectively history -15)
  • bash:
    • history <n> shows the <n> most recent entries.
    • (bash's history doesn't support listing from an entry number; you can use fc -l <n>, but a specific entry <n> must exist, otherwise the command fails - see below.)

Optional background info:

  • In zsh, history is effectively (not actually) an alias for fc -l: see man zshbuiltins
    • For the many history-related features, see man zshall
  • In bash, history is its own command whose syntax differs from fc -l
    • See: man bash
  • Both bash and zsh support fc -l <fromNum> [<toNum>] to list a given range of history entries:
    • bash: specific entry <fromNum> must exist.
    • zsh: command succeeds as long as least 1 entry falls in the (explicit or implied) range.
    • Thus, fc -l 1 works in zsh to return all history entries, whereas in bash it generally won't, given that entry #1 typically no longer exists (but, as stated, you can use history without arguments to list all entries in bash).
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Perhaps late however coming across this post and trying to apply it, and failed .... so in practical terms, put this in .zshrc :

alias history='history 1'

and you'll see anything until the HIST_SIZE runs out. To find a command I use (after the .zshrc change)

history | grep "my_grep_string"

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