Useful Commands - Revision history

Tacoball: /* Trouble shooting */

2026-08-04T08:11:16Z

Trouble shooting

← Older revision		Revision as of 08:11, 4 August 2026
Line 13:		Line 13:
	\| Verify $PATH by line. \|\|		\| Verify $PATH by line. \|\|
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
			echo $PATH \| tr ':' '\n'
	echo $PATH \| tr ':' '\n' \| grep 'snap'		echo $PATH \| tr ':' '\n' \| grep 'snap'
	</syntaxhighlight>		</syntaxhighlight>

Tacoball: /* File System */

2026-07-31T00:55:34Z

File System

← Older revision		Revision as of 00:55, 31 July 2026
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	\|-		\|-
	\| Set file mtime <br/>2013-09-01 00:00:00		\| Set file mtime <br/>2013-09-01 00:00:00
	\| <syntaxhighlight lang="bash">touch -t 201309010000 ~~檔案名稱~~</syntaxhighlight>		\| <syntaxhighlight lang="bash">touch -t 201309010000 FILENAME</syntaxhighlight>
	\|-		\|-
	\| create ramdisk for Linux (cannot set size)		\| create ramdisk for Linux (cannot set size)

Tacoball: /* File System */

2026-07-31T00:55:17Z

File System

← Older revision		Revision as of 00:55, 31 July 2026
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	! Purpose \|\| Command		! Purpose \|\| Command
	\|-		\|-
	\| ~~(查) 變彩色，加上後綴，目錄以 / 結尾，連結以 @ 結尾~~		\| list with color and suffix for dir and link
	\| <syntaxhighlight lang="bash">ls -FG</syntaxhighlight>		\| <syntaxhighlight lang="bash">ls -FG</syntaxhighlight>
	\|-		\|-
	\| ~~(查) 在目前的目錄下搜尋所有隱藏檔，~~'''~~注意要有單引號~~'''		\| list add hidden files only '''single quote is necessary'''
	\| <syntaxhighlight lang="bash">find . -name '.*'</syntaxhighlight>		\| <syntaxhighlight lang="bash">find . -name '.*'</syntaxhighlight>
	\|-		\|-
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	</syntaxhighlight>		</syntaxhighlight>
	\|-		\|-
	\| ~~刪除檔名~~ - 或是 -- ~~開頭的檔案~~		\| delete files that filename leads by - or --
	\| <syntaxhighlight lang="bash">rm -- -X --exclude-from</syntaxhighlight>		\| <syntaxhighlight lang="bash">rm -- -X --exclude-from</syntaxhighlight>
	\|-		\|-
	\| ~~變更檔案時間為~~<br/>2013 ~~年 9 月 1 號~~ 00:00:00		\| Set file mtime <br/>2013-09-01 00:00:00
	\| <syntaxhighlight lang="bash">touch -t 201309010000 檔案名稱</syntaxhighlight>		\| <syntaxhighlight lang="bash">touch -t 201309010000 檔案名稱</syntaxhighlight>
	\|-		\|-
	\| Linux ~~環境產生 Ramdisk~~ (~~無法指定大小~~)		\| create ramdisk for Linux (cannot set size)
	\| <syntaxhighlight lang="bash">mount -t ramfs ramfs /usr/local/ramdisk</syntaxhighlight>		\| <syntaxhighlight lang="bash">mount -t ramfs ramfs /usr/local/ramdisk</syntaxhighlight>
	\|-		\|-
	\| Linux/BSD ~~環境產生 Ramdisk (配置 128M)~~		\| create ramdisk for Linux/BSD
	\| <syntaxhighlight lang="bash">mount -t tmpfs -o size=128m tmpfs /usr/local/ramdisk</syntaxhighlight>		\| <syntaxhighlight lang="bash">mount -t tmpfs -o size=128m tmpfs /usr/local/ramdisk</syntaxhighlight>
	\|-		\|-
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	\| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=4k count=262144</syntaxhighlight>		\| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=4k count=262144</syntaxhighlight>
	\|-		\|-
	\| 產生 100K ~~的檔案~~		\| Create file with 100K size
	\| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=1k count=100</syntaxhighlight>		\| <syntaxhighlight lang="bash">dd if=/dev/zero of=100k.bin bs=1k count=100</syntaxhighlight>
	\|-		\|-
	\| ~~產生 10M 的檔案~~<br/>~~空間將會塞爆時，不會有警告訊息~~		\| 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>		\| <syntaxhighlight lang="bash">dd if=/dev/zero of=10m.bin bs=1m count=10</syntaxhighlight>
	\|-		\|-
	\| ~~故意消耗系統記憶體~~ (RAM+SWAP)		\| Simulate memory consumption (RAM+SWAP)
	\| <syntaxhighlight lang="bash">		\| <syntaxhighlight lang="bash">
	mkdir /usr/local/ramdisk		mkdir /usr/local/ramdisk

Tacoball: /* Trouble shooting */

2026-07-23T03:34:29Z

Trouble shooting

← Older revision		Revision as of 03:34, 23 July 2026
Line 13:		Line 13:
	\| Verify $PATH by line. \|\|		\| Verify $PATH by line. \|\|
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	echo $PATH \| tr ':' '\n'		echo $PATH \| tr ':' '\n' \| grep 'snap'
	</syntaxhighlight>		</syntaxhighlight>
	\|}		\|}

Tacoball: /* Trouble shooting */

2026-07-23T03:34:11Z

Trouble shooting

← Older revision		Revision as of 03:34, 23 July 2026
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	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	screen -d -r 2836		screen -d -r 2836
			</syntaxhighlight>
			\|-
			\| Verify $PATH by line. \|\|
			<syntaxhighlight lang="bash">
			echo $PATH \| tr ':' '\n'
	</syntaxhighlight>		</syntaxhighlight>
	\|}		\|}

Tacoball: /* File System */

2026-07-16T10:58:45Z

File System

← Older revision		Revision as of 10:58, 16 July 2026
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	= File System =		= File System =
	{\| class="wikitable"		{\| class="wikitable"
	! 情境 \|\| 指令		! Purpose \|\| Command
	\|-		\|-
	\| (查) 變彩色，加上後綴，目錄以 / 結尾，連結以 @ 結尾		\| (查) 變彩色，加上後綴，目錄以 / 結尾，連結以 @ 結尾

Tacoball: /* Trouble shooting */

2026-07-16T10:58:14Z

Trouble shooting

← Older revision		Revision as of 10:58, 16 July 2026
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	! Purpose \|\| Command		! Purpose \|\| Command
	\|-		\|-
	\| Reattach a attached screen. \|\|		\| Reattach an attached screen. \|\|
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	screen -d -r 2836		screen -d -r 2836

Tacoball: /* Trouble shooting */

2026-07-16T10:58:05Z

Trouble shooting

← Older revision		Revision as of 10:58, 16 July 2026
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	{\| class="wikitable"		{\| class="wikitable"
	! 情境 \|\| 指令		! Purpose \|\| Command
	\|-		\|-
	\| ~~(查) 變彩色，加上後綴，目錄以 / 結尾，連結以 @ 結尾~~ \|\|		\| Reattach a attached screen. \|\|
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	screen -d -r 2836		screen -d -r 2836

Tacoball at 10:55, 16 July 2026

2026-07-16T10:55:53Z

← Older revision		Revision as of 10:55, 16 July 2026
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	https://www.diskpart.com/articles/delete-hidden-partition-on-usb-drive-7201.html		https://www.diskpart.com/articles/delete-hidden-partition-on-usb-drive-7201.html

			= Trouble shooting =

			{\| class="wikitable"
			! 情境 \|\| 指令
			\|-
			\| (查) 變彩色，加上後綴，目錄以 / 結尾，連結以 @ 結尾 \|\|
			<syntaxhighlight lang="bash">
			screen -d -r 2836
			</syntaxhighlight>
			\|}

	= File System =		= File System =

Tacoball: /* Other Topics */

2026-07-16T02:05:37Z

← Older revision		Revision as of 02:05, 16 July 2026
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	* [[Useful Commands/MacOS only\|MacOS only]]		* [[Useful Commands/MacOS only\|MacOS only]]
	* [[Useful Commands/Windows only\|Windows only]]		* [[Useful Commands/Windows only\|Windows only]]
	* [[~~Git/Hardware\|~~Git]]		* [[Git]]