> For the complete documentation index, see [llms.txt](https://kashz.gitbook.io/kashz-jewels/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kashz.gitbook.io/kashz-jewels/os-linux/basic.md).

# basic

## Writable Paths

```bash
/dev/shm/
/tmp/
/home/<USER>/
/var/www/html/<>
```

## Alternatives of `cat`

```bash
# using grep 
grep . <filename> 

# print all files in current dir 
grep -R . 

# script 
while read line; do echo $line; done < FILE
```