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Dylan Araps
2019-09-19 12:34:56 +03:00
parent 045e24c6e9
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README.md
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@@ -9,9 +9,9 @@ align="center">A collection of pure POSIX sh alternatives to external processes.
<!-- vim-markdown-toc GFM -->
* [STRINGS](#strings)
* [Trim leading and trailing white-space from string](#trim-leading-and-trailing-white-space-from-string)
* [Strip pattern from start of string](#strip-pattern-from-start-of-string)
* [Strip pattern from end of string](#strip-pattern-from-end-of-string)
* [Trim leading and trailing white-space from string](#trim-leading-and-trailing-white-space-from-string)
* [Trim all white-space from string and truncate spaces](#trim-all-white-space-from-string-and-truncate-spaces)
* [Check if string contains a sub-string](#check-if-string-contains-a-sub-string)
* [Check if string starts with sub-string](#check-if-string-starts-with-sub-string)
@@ -61,35 +61,6 @@ align="center">A collection of pure POSIX sh alternatives to external processes.
# STRINGS
## Trim leading and trailing white-space from string
This is an alternative to `sed`, `awk`, `perl` and other tools. The
function below works by finding all leading and trailing white-space and
removing it from the start and end of the string.
**Example Function:**
```sh
trim_string() {
# Usage: trim_string " example string "
trim=${1#${1%%[![:space:]]*}}
trim=${trim%${trim##*[![:space:]]}}
printf '%s\n' "$trim"
}
```
**Example Usage:**
```shell
$ trim_string " Hello, World "
Hello, World
$ name=" John Black "
$ trim_string "$name"
John Black
```
## Strip pattern from start of string
**Example Function:**
@@ -126,6 +97,35 @@ $ rstrip "The Quick Brown Fox" " Fox"
The Quick Brown
```
## Trim leading and trailing white-space from string
This is an alternative to `sed`, `awk`, `perl` and other tools. The
function below works by finding all leading and trailing white-space and
removing it from the start and end of the string.
**Example Function:**
```sh
trim_string() {
# Usage: trim_string " example string "
trim=${1#${1%%[![:space:]]*}}
trim=${trim%${trim##*[![:space:]]}}
printf '%s\n' "$trim"
}
```
**Example Usage:**
```shell
$ trim_string " Hello, World "
Hello, World
$ name=" John Black "
$ trim_string "$name"
John Black
```
## Trim all white-space from string and truncate spaces
This is an alternative to `sed`, `awk`, `perl` and other tools. The