36 lines
541 B
Markdown
36 lines
541 B
Markdown
---
|
|
tags:
|
|
- shell
|
|
---
|
|
|
|
The following are useful built-in utility methods that you can use for checking
|
|
and validation in the course of your bash scripts.
|
|
|
|
## Flags
|
|
|
|
### Prevent newline
|
|
|
|
Prevent bash from adding a new line after an echo:
|
|
|
|
```bash
|
|
echo 'Your name is Thomas'
|
|
echo 'and you are 33 years old'
|
|
|
|
# Your name is Thomas
|
|
# and you are 33 years old
|
|
```
|
|
|
|
```bash
|
|
echo -n 'Your name is Thomas '
|
|
echo 'and you are 33 years old'
|
|
|
|
# Your name is Thomas and you are 33 years old
|
|
```
|
|
|
|
## Operators
|
|
|
|
### Mathematical
|
|
|
|
```bash
|
|
-lt , -gt,
|
|
```
|