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docs: update

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Dylan Araps
2019-09-19 13:13:38 +03:00
parent 26859234a9
commit e84582ca6b
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README.md
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@@ -19,6 +19,7 @@ align="center">A collection of pure POSIX sh alternatives to external processes.
* [Split a string on a delimiter](#split-a-string-on-a-delimiter) * [Split a string on a delimiter](#split-a-string-on-a-delimiter)
* [Trim quotes from a string](#trim-quotes-from-a-string) * [Trim quotes from a string](#trim-quotes-from-a-string)
* [FILES](#files) * [FILES](#files)
* [Parsing a `key=val` file.](#parsing-a-keyval-file)
* [Get the first N lines of a file](#get-the-first-n-lines-of-a-file) * [Get the first N lines of a file](#get-the-first-n-lines-of-a-file)
* [Get the number of lines in a file](#get-the-number-of-lines-in-a-file) * [Get the number of lines in a file](#get-the-number-of-lines-in-a-file)
* [Count files or directories in directory](#count-files-or-directories-in-directory) * [Count files or directories in directory](#count-files-or-directories-in-directory)
@@ -331,6 +332,21 @@ Hello, World
# FILES # FILES
## Parsing a `key=val` file.
```shell
# Setting 'IFS' tells 'read' where to split the string.
while IFS='=' read -r key val; do
# Skip over lines containing comments.
# (Lines starting with '#').
[ "${key##\#*}" ] || continue
# '$key' stores the key.
# '$val' stores the value.
printf '%s: %s\n' "$key" "$val"
done < "file"
```
## Get the first N lines of a file ## Get the first N lines of a file
Alternative to the `head` command. Alternative to the `head` command.