Tacoball at 02:00, 17 September 2026

2026-09-17T02:00:26Z

← Older revision		Revision as of 02:00, 17 September 2026
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	~~= File System =~~
	{\| class="wikitable"		{\| class="wikitable"
	! Purpose \|\| Command		! 🎯 Purpose \|\| ⌨️ Command
	\|-		\|-
	\| list with color and suffix for dir and link		\| list with color and suffix for dir and link

Tacoball: Created page with "= File System = {| class="wikitable" ! Purpose || Command |- | list with color and suffix for dir and link | ls -FG |- | list add hidden files only '''single quote is necessary''' | find . -name '.' |- | delete dist directory recursively except README.md and itself. | find ../../assets/swagger/support ! -path swagger/support ! -name 'README.md' -d..."

2026-09-17T01:37:11Z

Created page with "= File System = {| class="wikitable" ! Purpose || Command |- | list with color and suffix for dir and link | <syntaxhighlight lang="bash">ls -FG</syntaxhighlight> |- | list add hidden files only '''single quote is necessary''' | <syntaxhighlight lang="bash">find . -name '.*'</syntaxhighlight> |- | delete dist directory recursively except README.md and itself. | <syntaxhighlight lang="bash"> find ../../assets/swagger/support ! -path *swagger/support ! -name 'README.md' -d..."

New page

= File System =
{| class="wikitable"
! Purpose || Command
|-
| list with color and suffix for dir and link
| <syntaxhighlight lang="bash">ls -FG</syntaxhighlight>
|-
| list add hidden files only '''single quote is necessary'''
| <syntaxhighlight lang="bash">find . -name '.*'</syntaxhighlight>
|-
| delete dist directory recursively except README.md and itself.
| <syntaxhighlight lang="bash">
find ../../assets/swagger/support ! -path *swagger/support ! -name 'README.md' -delete
</syntaxhighlight>
|-
| delete files that filename leads by - or --
| <syntaxhighlight lang="bash">rm -- -X --exclude-from</syntaxhighlight>
|-
| Set file mtime <br/>2013-09-01 00:00:00
| <syntaxhighlight lang="bash">touch -t 201309010000 FILENAME</syntaxhighlight>
|-
| create ramdisk for Linux (cannot set size)
| <syntaxhighlight lang="bash">mount -t ramfs ramfs /usr/local/ramdisk</syntaxhighlight>
|-
| create ramdisk for Linux/BSD
| <syntaxhighlight lang="bash">mount -t tmpfs -o size=128m tmpfs /usr/local/ramdisk</syntaxhighlight>
|-
| Test I/O performance of 1G write with 4K block
| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=4k count=262144</syntaxhighlight>
|-
| Create file with 100K size
| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=1k count=100</syntaxhighlight>
|-
| Create file with 1M size<br/>No warning on disk full
| <syntaxhighlight lang="bash">dd if=/dev/zero of=10m.bin bs=1m count=10</syntaxhighlight>
|-
| Simulate memory consumption (RAM+SWAP)
| <syntaxhighlight lang="bash">
mkdir /usr/local/ramdisk
mount -t tmpfs -o size=2G tmpfs /usr/local/ramdisk
dd if=/dev/zero of=/usr/local/ramdisk/fill.bin bs=1m count=2048
</syntaxhighlight>
|}

Useful Commands/Low Level IO - Revision history

Tacoball at 02:00, 17 September 2026