40 lines
1.1 KiB
Bash
40 lines
1.1 KiB
Bash
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# shellcheck shell=bash
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cite about-plugin
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about-plugin 'improve history handling with sane defaults'
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# append to bash_history if Terminal.app quits
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shopt -s histappend
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# erase duplicates; alternative option: export HISTCONTROL=ignoredups
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export HISTCONTROL=${HISTCONTROL:-ignorespace:erasedups}
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# resize history to 100x the default (500)
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export HISTSIZE=${HISTSIZE:-50000}
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top-history() {
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about 'print the name and count of the most commonly run tools'
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if [[ -n $HISTTIMEFORMAT ]]; then
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# To parse history we need a predictable format, which HISTTIMEFORMAT
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# gets in the way of. So we unset it and set a trap to guarantee the
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# user's environment returns to normal even if the pipeline below fails.
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# shellcheck disable=SC2064
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trap "export HISTTIMEFORMAT='$HISTTIMEFORMAT'" RETURN
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unset HISTTIMEFORMAT
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fi
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history \
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| awk '{
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a[$2]++
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}END{
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for(i in a)
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printf("%s\t%s\n", a[i], i)
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}' \
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| sort --reverse --numeric-sort \
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| head \
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| column \
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--table \
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--table-columns 'Command Count,Command Name' \
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--output-separator ' | '
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}
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