85 lines
2.7 KiB
Bash
Executable File
85 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Exit if any command fails
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set -e
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# Inform the user of the output they can expect.
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echo "common commands:"
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write_command_then_count() {
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# Get the command and count, which currently looks like:
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# '42 git commit'
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# Then write th e command with the count afterward
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local line="$1"
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local count=$(echo "${line}" | cut -d' ' -f1)
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local command=$(echo "${line}" | cut -d' ' -f2-)
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echo "${command} (${count})"
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}
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# The following variables control how the command runs.
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shell_binary="" # A place to store the shell binary value
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history_file="" # A place to store the history file path
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history_lines=1000 # The number of lines of history to search through
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command_count=${1:-10} # The number of common commands to show
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# Check whether you can determine the name of the shell binary
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shell_regex="([^/]+$)"
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if [[ $SHELL =~ $shell_regex ]]; then
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# Depending on the name of the shell binary, set the history filepath
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shell_binary=${BASH_REMATCH[1]}
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if [[ $shell_binary == "bash" ]]; then
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history_file=~/.bash_history
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elif [[ $shell_binary == "zsh" ]]; then
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history_file=~/.zsh_history
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fi
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fi
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# If you are searching through the bash history, you can look at the history file
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# to get the most common commands
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if [[ $shell_binary == "bash" ]]; then
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# Show the most commonly used commands
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commands=$(tail "${history_file}" -n ${history_lines} \
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| sort \
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| uniq -c \
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| sed 's/^ *//' \
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| sort -n -r \
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| head -n ${command_count})
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elif [[ $shell_binary == "zsh" ]]; then
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# Z shell shitory lines look like this:
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# : 1621135004:0;uname -a
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# Run the same command as above, and extract everything _after_ the
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# semicolon, which is the command text
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commands=$(tail "${history_file}" -n ${history_lines} \
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| cut -d';' -f2 \
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| sort \
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| uniq -c \
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| sed 's/^ *//' \
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| sort -n -r \
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| head -n ${command_count})
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else
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# show a warning to the user that you don't know where the history file
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# is for their shell
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echo "Sorry, I don't know where to find the history file for '${SHELL}'"
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fi
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# Print each command, showing its order in the list
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# Commands are separated by newlines, so temporarily change IFS to loop over
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# each line of the commands
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counter=1
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old_ifs=$IFS
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IFS=$'\n'
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for command in $commands
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do
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use_count=$(echo "$command" | cut -d' ' -f 1)
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use_command=$(echo "$command" | cut -d' ' -f 2)
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printf "$(tput bold; tput setaf 3)%-5s $(tput sgr0)$(tput setaf 6)%-5s $(tput sgr0)%-5s\n" "$counter" "$use_count" "$use_command"
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counter=$((counter + 1))
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done
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IFS=$old_ifs
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