181 lines
3.1 KiB
Markdown
181 lines
3.1 KiB
Markdown
---
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title: "Quality of Life"
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tags: [ "basics", "setup" ]
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dependencies: [ "vi", "basics" ]
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---
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This & That
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===========
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Refer to 'that last thing', and 'the first thing':
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```bash
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fortune -l > file1
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cat !$ | tr -d u
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diff !^ !$
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```
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**NB:** this can go wrong:
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```bash
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ls -l file1 file2
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cat !^
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```
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Done
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----
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`<C-d>`
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- If you have a command, Control + d will execute the command.
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- If you have nothing, `exit`.
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Input Run-Commands (`~/.inputrc`)
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=================================
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Alias Expansion
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---------------
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```bash
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echo '"\C- ": shell-expand-line' >> ~/.inputrc
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exec bash
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```
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Now you can expand all aliases with 'Control + Space'.
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Try just `ls`, then 'Control + Space'.
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Glob Expansion (`*`)
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--------------------
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```bash
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echo '"\C-x": glob-expand-word' >> ~/.inputrc
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exec bash
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ls *<C-x>
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```
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- Are you sure you want to delete that?
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* `rm -r *<C-x>`
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- Clean up the Downloads folder:
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* `rm Downloads/*pdf<C-x>`
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Arbitrary Commands
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------------------
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Use `\n` as a 'newline' character to automatically press `<Return>`.
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```bash
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echo 'Control-y: "| lolcat\n"' >> ~/.inputrc
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exec bash
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ls<C-y>
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```
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```bash
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Control-l: "\C-u clear -x && ls\n"
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exec bash
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cd /etc/<C-l>
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```
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Readline as Vi
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--------------
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```bash
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echo 'set editing-mode vi' >> ~/.inputrc
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echo 'set keymap vi-insert' >> ~/.inputrc
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exec bash
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```
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The prompt now works according to `vi`-motions.
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This goes much further than the bash-option, `set -o vi` ('set option: `vi`').
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It changes the cursor in the terminal, not just bash.
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Try:
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- `ls <C-n>`
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- `ls <C-p>`
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- Type some words.
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- `<Esc>0dw$p`
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- <Esc> to normal-mode, and go back with 'b', and forward with 'e'.
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- `4b` to step back four times.
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- `cE`
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- `<Esc>kcw`
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- ls -a<Esc>xxxx
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Works with `python` too:
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```python
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im<C-n>os<Return>
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os.li<C-n><Return>
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<Esc>kfn
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<C-d>
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```
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Fix Globs!
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----------
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If you tried the previous commands then they will not work any more, because the `vi`-commands overwrite the other commands.
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Remove them.
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```bash
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sed '/ vi/d' ~/.inputrc
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sed -i '/ vi/d' ~/.inputrc
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sed '1 i set editing-mode vi' .inputrc
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sed -i '1 i set editing-mode vi' ~/.inputrc
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sed -i '2 i set keymap vi-insert' ~/.inputrc
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```
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Vi-sibility
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-----------
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The `readline` prompt becomes confusing if you don't remember if you're in insert or normal mode.
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But you can show the current mode in the prompt:
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```bash
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echo 'set show-mode-in-prompt on' >> ~/.inputrc
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exec bash
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```
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Set new symbols for normal and insert mode:
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```bash
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echo 'set vi-ins-mode-string " "' >> ~/.inputrc
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echo 'set vi-cmd-mode-string " "' >> ~/.inputrc
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```
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Fuzzy Sort
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==========
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Check your repos for `sk-im`, and install.
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The program is called `sk`.
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```bash
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FUZZY=sk
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```
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If you don't have it, `fzy` or `fzf` should work the same way.
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```bash
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FUZZY=fzy
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```
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Find some 'read-config' files to check out:
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```bash
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find . -maxdepth 2 -name "*rc"
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find . -maxdepth 2 -name "*rc" | $FUZZY
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```
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And read some:
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```bash
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PAGER='less -R'
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$PAGER "$(find . -maxdepth 2 -name "*rc" | $FUZZY)"
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```
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Make the change long-term:
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```bash
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alias rrc='$PAGER "$(find . -maxdepth 2 -name "*rc" | sk)"'
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alias | grep rrc= >> ~/.bash_aliases
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```
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