..actually mostly vim :)
Config
a few useful settings for ~/.vimrc
set number
filetype indent on
set expandtab
set shiftwidth=2
set softtabstop=2
syntax on
set background=dark
" or: set background=light
" colorscheme default
("
= comment)
Edit modes
i
to insert and r
to replace a
to append d
to delete
ESC
always switches back to ‘command mode’
copy:
yank (copy) current character: l
yank n characters: yn
yank the current word: yw
vim visual mode:
visual line: SHIFT+V
visual block: CTRL+V
current word:
select the current word (visual)
viw
indent:
auto reindent file:
gg=G
indent line right: >>
indent line left: <<
case:
to upper/lower case: ~
(“tilde”)
Commands
:open <file>
:new <file>
:no paste
:set nu
and :set nonu
(number)
:set list
and :set nolist
tabs:
:set noai tabstop=4 shiftwidth=4 softtabstop=4 noexpandtab
noai = no auto indent
tabstop = actual tab width in spaces
shiftwidth = indent size in spaces
expandtab = tab uses spaces instead of ^I
(tab char)
softtabstop = tab is x number of spaces
syntax:
:set syntax=python
:set syntax=ps1.vim
:set filetype=xml
:filetype indent on
if needed, reindent (gg=G
)
run external command:
:!<command>
:!ls -la /tmp
:sh
(open shell)
format json:
:%!python -m json.tool
Moving
code blocks:
on bracket/curley brace/parentheses, press: %
goto column:
use "<NUMBER>|"
e.g. 80|
moves to column 80
center:
to center the screen on your current position, press: zz
Search
history:
same as with ":"
press “/
” then “UP
” or “DOWN
” key
word:
to search for the word you are on
*
#
Bookmarks
set a bookmark called ‘a’
ma
go to the bookmark called ‘a’
(on US kb layout the ` is the key left of 1)
`a
Modes
readonly:
$ vi -R
(or view)
diff:
$ vi -d
(or vimdiff)
Package manager
since vim8, “pack” is built in
user location:
~/.vim/pack/<package group>/start/<your package>
- or, use “
opt
” dir instead of “start
” to not autoload (optional pkg)
in vim:
:packadd <opt-pkg>
:helptags ~/.vim/pack/<package group>/start/<your package>/doc/
:h packages
Rosetta Stone:
Linux command (Red-Hat/Debian) | FreeBSD equivalent | Purpose |
---|---|---|
yum/apt install package | pkg install package | Install package from remote repository |
rpm -ivh package / dpkg -i package | pkg add package | Install local package |
rpm -qa / dpkg -l | pkg info | List installed packages |
lspci | pciconf | List PCI devices |
lsmod | kldstat | List loaded kernel modules |
modprobe | kldload / kldunload | Load/Unload kernel modules |
strace | truss | Trace system calls |
Profile:
~/.profile:
Sparsefiles/loop:
add:
mdconfig -a -t vnode -f /usr/data/gdata.md
del:
mdconfig -d -u 0
list:
mdconfig -l
Disks:
fsck -p -t ffs /dev/md0.eli
newfs -U -O 1 -f 512 -b 4096 -i 8192 /dev/md0
grep ada /var/run/dmesg.boot grep ada /var/run/dmesg.boot | grep \< grep "\(atapci\|ahcich\)" /var/run/dmesg.boot|sort
camcontrol devlist camcontrol devlist -b camcontrol devlist -v camcontrol devlist -v|grep -A 1 ^sc camcontrol identify ada0
diskinfo -v /dev/ada0 diskinfo -t
Partitions:
gpart show ada0 gpart create -s gpt da0
single:
gpart add -t freebsd-ufs ada1
slices(?) :
gpart add -t freebsd-boot -l gpboot -b 40 -s 512K da0 gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 da0 gpart add -t freebsd-ufs -l gprootfs -b 1M -s 2G da0 gpart add -t freebsd-swap -l gpswap -s 512M da0 gpart add -t freebsd-ufs -l gpvarfs -s 1G da0 gpart add -t freebsd-ufs -l gptmpfs -s 256M da0 gpart add -t freebsd-ufs -l gpusrfs -a 1M da0 gpart delete -i 1 da0 gpart destroy da0
Encrypt disk using geli:
geli init /dev/md0 geli attach md0 geli detach md0
Memory:
sysctl hw.physmem grep memory /var/run/dmesg.boot
Ramdisk:
mdmfs -s 1g md1 /mnt/mdmfs
Open files:
fstat fstat -f /usr (-u pid -u user)
Monitor:
iostat -w 1 da0 da1 systat systat iostat, vmstat, netstat, mbufs, swap gstat
Using gcc 4.8:
./configure CC=/usr/local/bin/gcc48
Pkg:
pkg info -l pkgname pkg which <file> pkg audit -F
auditd:
/etc/security/audit_control: flags:lo,aa,ex,fc,fd,fw,fm,ad /etc/security/audit_user praudit /var/audit/current auditreduce -u <user> <file> | praudit for i in /var/audit/*gz; do echo $i; zcat $i | auditreduce -u user| praudit; done zcat /var/audit/*gz | auditreduce -u user| praudit
ipfw:
#disable ipfw add 1 pass all from any to any; sysctl net.inet.ip.fw.enable=0; kldunload ipfw #enable kldload ipfw; sysctl net.inet.ip.fw.enable=1; ipfw add 1 pass all from any to any firewall_type="filename" // without any command-line options for ipfw firewall_script="/etc/ipfw.rules" // executable script that includes ipfw commands /etc/ipfw.rules ipfw list ipfw -a -d -e -t list service ipfw restart
fw-test.sh:
#!/bin/sh -x kldload ipfw; sysctl net.inet.ip.fw.enable=1; ipfw add 1 pass all from any to any service ipfw restart sleep 20 service ipfw stop ipfw add 1 pass all from any to any; sysctl net.inet.ip.fw.enable=0; kldunload ipfw
/usr/share/examples/ipfw/change_rules.sh
pw:
# pw groupadd teamtwo Adding User Accounts to a New Group Using pw # pw groupmod teamtwo -M jru # pw groupshow teamtwo
Update stable:
# freebsd-update fetch # freebsd-update install
Update openssl only:
cd /usr/src patch < /path/to/patch cd /usr/src/secure/lib/libcrypto make obj && make depend && make includes && make make install cd /usr/src/secure/lib/libssl make clean && make depend && make includes && make make install cd /usr/src/secure/usr.bin/openssl make clean && make make install
Secure erase:
camcontrol security ada1 camcontrol security /dev/ada1 -s Erase -e Erase camcontrol security /dev/ada1 -U user -s Erase (?) camcontrol security ada1 --security-user user --security-set-password Erase --security-erase Erase
disable: -d password
secure erase: -e password
enhanched: -h password
unlock: -k password
password: -s password
-U user|master
Encrypted swap:
dd if=/dev/zero of=/usr/data/st0/swap0 bs=1m count=8000 chmod 0600 /usr/data/st0/swap0 mdconfig -a -t vnode -f /usr/data/st0/swap0 -u 99 geli onetime md99 chmod 600 /dev/md99.eli swapon /dev/md99.eli
Various:
fix backspace:
stty erase \^H"
netstat -nap:
sockstat
Download:
https://github.com/sivel/speedtest-cli
https://pypi.python.org/pypi/speedtest-cli/
Use only NL servers:
Update 2022:
There’s also a native cli tool now: https://www.speedtest.net/apps/cli
From http://lifehacker.com/5917787/how-to-delete-a-song-from-your-itunes-library-from-the-playlist-view
How to Delete a Song from Your iTunes Library from the Playlist View
If you find a song in one of your iTunes playlists that you no longer want, you
usually have to go all the way back to the “Music” view and find it inorder to
delete it. This keyboard shortcut saves you the hassle, deleting the item right
from the playlist view.
Ordinarily, pressing the delete key while in a playlist will only prompt you to
remove the song from that playlist. If you want to remove it from yourlibrary
entirely, just press Shift+Delete (on Windows) or Option+Delete (on OS X), and
you’ll get the prompt to remove the song from your libraryentirely. Pretty handy
for us playlist junkies.
—
From http://trevinchow.com/blog/2010/01/03/deleting-song-in-itunes-library-from-within-a-playlist/
So when you’re in an iTunes playlist and want to remove the song from the playlist only, use Delete. If you want to remove it from both the playlist AND your iTunes Library, use Shift+Delete !
(There is also another undocumented shortcut – CTRL + SHIFT + Delete which will do the same thing as Shift+Delete except it will add an extra confirmation for sending the file to the recycle bin. Since you already get one prompt using Shift+Delete, there’s no reason for this extra step)
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