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Greg 2019-06-18 14:07:02 -04:00
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README.md
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@ -20,7 +20,7 @@ Find & replace expressions are split up, which makes them easy to read and write
**Smart, common-sense defaults** **Smart, common-sense defaults**
Smart-cased regular expressions also come with a sane syntax that's not opt-in. Defaults follow common sense and are tailored for typical daily use. Defaults follow common sense and are tailored for typical daily use.
## Comparison to sed ## Comparison to sed
@ -40,7 +40,7 @@ Some cherry-picked examples, where `sd` shines:
- `echo "sample with /path/" | sed -E 's/.*(/.*/)/\1/g'` - `echo "sample with /path/" | sed -E 's/.*(/.*/)/\1/g'`
- `echo "sample with /path/" | sed -E 's|.*(/.*/)|\1|g'` - `echo "sample with /path/" | sed -E 's|.*(/.*/)|\1|g'`
- In place modification of files: - In place modification of files:
- sd: `sd -i before after file.txt` - sd: `sd before after file.txt`
- sed: you need to remember to use `-e` or else some platforms will consider the next argument to be a backup suffix - sed: you need to remember to use `-e` or else some platforms will consider the next argument to be a backup suffix
- `sed -i -e 's/before/after/g' file.txt` - `sed -i -e 's/before/after/g' file.txt`
@ -134,6 +134,7 @@ In the unlikely case you stumble upon ambiguities, resolve them by using `${var}
```sh ```sh
> echo '123.45' | sd '(?P<dollars>\d+)\.(?P<cents>\d+)' '$dollars_dollars and $cents_cents' > echo '123.45' | sd '(?P<dollars>\d+)\.(?P<cents>\d+)' '$dollars_dollars and $cents_cents'
and and
> echo '123.45' | sd '(?P<dollars>\d+)\.(?P<cents>\d+)' '${dollars}_dollars and ${cents}_cents' > echo '123.45' | sd '(?P<dollars>\d+)\.(?P<cents>\d+)' '${dollars}_dollars and ${cents}_cents'
123_dollars and 45_cents 123_dollars and 45_cents
``` ```
@ -141,15 +142,15 @@ In the unlikely case you stumble upon ambiguities, resolve them by using `${var}
4. **Find & replace in a file** 4. **Find & replace in a file**
```sh ```sh
> sd -i 'window.fetch' 'fetch' http.js > sd 'window.fetch' 'fetch' http.js
``` ```
That's it. The file is modified in-place. That's it. The file is modified in-place.
To do a dry run: To preview changes:
```sh ```sh
> sd 'window.fetch' 'fetch' http.js > sd -p 'window.fetch' 'fetch' http.js
``` ```
5. **Find & replace across project** 5. **Find & replace across project**
@ -159,7 +160,7 @@ This example uses [fd](https://github.com/sharkdp/fd).
Good ol' unix philosophy to the rescue. Good ol' unix philosophy to the rescue.
```sh ```sh
sd -i 'from "react"' 'from "preact"' $(fd -t f) sd 'from "react"' 'from "preact"' $(fd -t f)
``` ```
Same, but with backups (consider version control). Same, but with backups (consider version control).
@ -167,6 +168,6 @@ Same, but with backups (consider version control).
```bash ```bash
for file in $(fd -t f); do for file in $(fd -t f); do
cp "$file" "$file.bk" cp "$file" "$file.bk"
sd -i 'from "react"' 'from "preact"' "$file"; sd 'from "react"' 'from "preact"' "$file";
done done
``` ```