|
|
| Line 49: |
Line 49: |
| echo $PATH | tr ':' '\n' | | echo $PATH | tr ':' '\n' |
| echo $PATH | tr ':' '\n' | grep 'snap' | | echo $PATH | tr ':' '\n' | grep 'snap' |
| </syntaxhighlight>
| |
| |}
| |
|
| |
| = 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> | | </syntaxhighlight> |
| |} | | |} |
https://www.diskpart.com/articles/delete-hidden-partition-on-usb-drive-7201.html
Overview
| Services
|
Networking
|
OS
|
Hardware
|
Packages
|
File System
|
Data
|
|
|
|
|
|
|
|
|
Trouble shooting
| Purpose |
Command
|
| Verify $PATH by line. |
echo $PATH | tr ':' '\n'
echo $PATH | tr ':' '\n' | grep 'snap'
|