Interactive Programs
Emacs
| Indent everything | M-x indent-region |
| Forward search | C-s |
| Backward search | C-r |
| Repeat old searches | C-s M-pC-s M-n |
| Regexp search | C-M-s |
| Search word under the cursor (beginning at the cursor position) | C-s C-w |
| Show only lines which match your regular expression | M-x occur RET fooM-x list-matching-lines RET foo |
| Removes lines which matches regular expressions | M-x flush-lines |
| Removes lines which does not match regular expression | M-x keep-lines |
| Counts the number of occurrences for the given expression | M-x count-matches RET foo |
| Execute grep and get output | M-x grep RET grep -e root /etc/passwd |
| Search and replace | M-% |
| Set mark | C-SPACE |
| Mark paragraph | M-h |
| Mark whole buffer | C-x h |
| Cut region | C-w |
| Copy region | ESC-w |
| Insert region | C-y |
| Split Window | C-x 2 |
| Split Window side by side | C-x 3 |
| Jump to an other part of the window | C-x o |
| Unsplit Window | C-x 1 |
| New Window | C-x 5 2 |
| Close Window | C-x 5 0 |
| Close Buffer | C-x k RET |
| Switch to another buffer | C-x b RET |
| Insert a spoiler (^L): | C-q C-l |
| Macro Start | C-x ( |
| Macro Stop | C-x ) |
| Macro Execute | C-x e |
| Edit last macro | C-x C-k |
| Replaces newlines | M-q |
| Make current word upper case | M-u |
| Make current word lower case | M-l |
| Compare two files, buffers or directories | M-x ediffM-x ediff-buffersM-x ediff-directories |
| Emacs file manager | M-x dired |
| The last 4 Words before the current cursor position are automatically inserted whenever you type foo | C-u 4 C-x a + RET fooM-x list-abbrevsM-x edit-abbrevsM-x write-abbrev-file RET ~/.abbrev_defsM-x abbrev-mode |
Search and Replace and line breaks
You can use this
C-q C-j
to insert a line break with search and replace.
Select Columns, Copy and Past columns
In emacs you can not only select rows for copy and paste but also columns. In order to achieve this, just move the cursor to the top left position of your column (in this example we assume it should start at the letter A). Now select CTRL-SPACE to start the selection.
xx Ax xx
xx xx xx
xx xB xx
xx xx xx
xx xx xx
xx xB xx
xx xx xx
Afterwards, move the cursor to the lower right corner of your column. (We assume this will be at the letter B). Now you can issue
M-x kill-rectangle
The column disapears
xx xx
xx xx
xx xx
xx xx xx
xx xx
xx xx
xx xx xx
You can insert it again with the command
M-x yank-rectangle
Open remote files and directories
C-x C-f RET /username@ftp.example.com:/foo/bar.txt RET
Change to passive mode
M-x customize-option RET ange-ftp-try-passive-mode RET
First row in file helps emacs to load mode
There are some special lines you can add as the first row of a file to trigger a mode in emacs SQL
-- For the benefit of emacs users -*- mode: sql; sql-product: oracle; -*-
-- For the benefit of emacs users -*- mode: sql; sql-product: ansi; -*-
-- For the benefit of emacs users -*- mode: sql; sql-product: ansi; -*-
Highlight parenthesis
Show where the current parenthesis opens and closes
M-x show-paren-mode
Show column of cursor
Show the cursor position in current row
M-x column-number-mode
Emacs Links
VI
Command Line
| Restore files | vi -r |
Modes
| Command mode | ESC |
| Insert mode | i |
| Append after cursor mode | a |
| Append after linebreak mode | A |
| Replace one character | r |
| Replace mode | R |
Files
| Open file | :e |
| Reload file | :e! |
| Open file, jump to the end of the file | :e + |
| Open file, jump to line z | :e +z |
| Show filename + linenumber | :f |
| Next file | :n |
| Save file | :w (:w!) |
| Quit | :q (:q!) |
| Save + Quit | :wq (ZZ) |
Navigation
| Move one position to the left, right, up, down | h l k j |
| Move one page nach up | CTRL f |
| Move one page down | CTRL b |
| Move to the beginning of the file | 0 |
| Move to the end of the file | $ |
| Move to line z | :z NR |
| Move to the beginning of the line | ^ |
| Move to the end of the line | $ |
Edit
| Delete everything from here to the end of the line | D |
| Delete this line | dd |
| Delete this character | x (dl) |
| Copy this line | y |
| Copy the next n lines | nyy |
| Paste after this line | p |
| Paste before this line | P |
| Undo | u |
| Undo this line | U |
Search, Replace
| Search | / |
| Search backwards | ? |
| Continue search | n |
| Continue search but backwards | N |
| Replace the next alt with neu | :s/alt/neu/ |
| Replace in this line all alt with neu | :s/alt/neu/g |
| Replace from line anfang till line ende in each line the first alt with neu(use $ for the last line) | :[anfang,ende]s/alt/neu/ |
| Example: | :3,5s/Fogel/Vogel/ |
General
| Show user settings | :set |
| Show all settings | :set all |
| Repeat command | . |
screen
| Start a program with screen | screen prg |
| Send the program to the background | C-a C-d |
| Restore the program | screen -r PID |
blender
| Object scale (x,y,z direction) | s, s x, s y, s z |
| Object rotate (x,y,z direction) | r, r x, r y, r z |
| Object move (x,y,z direction) | g, g x, g y, g z |
| Edit / objekt Mode | TAB |
| Duplicate objekt | SHIFT d |
| Join objekts | CTRL J |
Stow
mkdir /usr/local/stow/paket
cd /usr/local/src/
tar xzf quelle.tgz
cd quellpaket
./configure
make
make install prefix=/usr/local/stow/paket
cd /usr/local/stow
stow -n paket
stow paket
cd /usr/local/src/
tar xzf quelle.tgz
cd quellpaket
./configure
make
make install prefix=/usr/local/stow/paket
cd /usr/local/stow
stow -n paket
stow paket
Subversion (svn)
Revision / version control Subversion
Bochs
* bximage
- .bochsrc
romimage: file=/usr/share/bochs/BIOS-bochs-latest, address=0xf0000
megs: 256
vgaromimage: /usr/share/vgabios/vgabios.bin
ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
ata1: enabled=0, ioaddr1=0x170, ioaddr2=0x370, irq=15
ata2: enabled=0, ioaddr1=0x1e8, ioaddr2=0x3e0, irq=11
ata3: enabled=0, ioaddr1=0x168, ioaddr2=0x360, irq=9
# bximage -> X
ata0-master: type=disk, path="c.img", mode=flat, cylinders=X, heads=X, spt=X
#boot: disk
boot: cdrom
ips: 5000000
#sb16: midimode=1, midi=/dev/midi00, wavemode=1, wave=/dev/dsp, loglevel=2, log=/dev/stdout, dmatimer=600000
ne2k: ioaddr=0x240, irq=9, mac=12:34:56:78:90:01, ethmod=linux, ethdev=eth0
usb1: enabled=1, ioaddr=0xFF80, irq=10
megs: 256
vgaromimage: /usr/share/vgabios/vgabios.bin
ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
ata1: enabled=0, ioaddr1=0x170, ioaddr2=0x370, irq=15
ata2: enabled=0, ioaddr1=0x1e8, ioaddr2=0x3e0, irq=11
ata3: enabled=0, ioaddr1=0x168, ioaddr2=0x360, irq=9
# bximage -> X
ata0-master: type=disk, path="c.img", mode=flat, cylinders=X, heads=X, spt=X
#boot: disk
boot: cdrom
ips: 5000000
#sb16: midimode=1, midi=/dev/midi00, wavemode=1, wave=/dev/dsp, loglevel=2, log=/dev/stdout, dmatimer=600000
ne2k: ioaddr=0x240, irq=9, mac=12:34:56:78:90:01, ethmod=linux, ethdev=eth0
usb1: enabled=1, ioaddr=0xFF80, irq=10
GNU Plot
GNU Plot Links
GNUPLOT GNUPLOT - A Brief Manual and Tutorial
Function -> Diagram
gnuplot> plot [-pi:pi] sin(x), cos(x)
gnuplot> splot sin(x*y/20)
gnuplot> plot x**2
gnuplot> set out "/tmp/my_output.ps"
gnuplot> set terminal postscript portrait enhanced color
gnuplot> splot sin(x*y/20)
gnuplot> plot x**2
gnuplot> set out "/tmp/my_output.ps"
gnuplot> set terminal postscript portrait enhanced color
Data -> Diagram
gnuplot> plot "myfile.dat" using 1:2 title "2*x" with lines, "myfile.dat" using 1:3 title "x*x" with lines
myfile.dat:
0 0 1
1 2 2
2 4 4
3 6 8
4 8 16
5 10 32
myfile.dat:
0 0 1
1 2 2
2 4 4
3 6 8
4 8 16
5 10 32
Time / Date Axis
gnuplot> set xdata time
gnuplot> set timefmt "%Y%j"
gnuplot> set format x "%Y_%m"
gnuplot> set timefmt "%Y%j"
gnuplot> set format x "%Y_%m"
Even More GNU Plot Commands
set boxwidth 0.1
set yrange [0:60]
set yrange [0:*]
set xrange [-1.5:1.5]
set xlabel "Foo"
set format y '%g MB/s'
set xtics ('foo' 1, '2 bar' 2)
set mytics 2
set grid
set style fill pattern border
plot "myfile.dat" using 1:2 title "foo" with boxes, "gp" using 1:3 title "bar" with boxes
set terminal png size 800 600
set output "/tmp/my_output.png"
replot
set yrange [0:60]
set yrange [0:*]
set xrange [-1.5:1.5]
set xlabel "Foo"
set format y '%g MB/s'
set xtics ('foo' 1, '2 bar' 2)
set mytics 2
set grid
set style fill pattern border
plot "myfile.dat" using 1:2 title "foo" with boxes, "gp" using 1:3 title "bar" with boxes
set terminal png size 800 600
set output "/tmp/my_output.png"
replot
cdrdao
toc Datei
Audio-Tracks
| Without leading break |
TRACK AUDIO
NO COPY
FILE "01.wav" 00:00:00
NO COPY
FILE "01.wav" 00:00:00
| With a 10 second leading break |
TRACK AUDIO
NO COPY
SILENCE 00:10:00
START
FILE "01.wav" 00:00:00
NO COPY
SILENCE 00:10:00
START
FILE "01.wav" 00:00:00
| Only the part from 3 minutes 5 seconds to 3 minutes 35 seconds |
TRACK AUDIO
NO COPY
FILE "01.wav" 03:05:00 00:30:00
NO COPY
FILE "01.wav" 03:05:00 00:30:00
| Part from 1 minute to 1 minute 30 seconds from file 01.wav and from file 02.wav everything from 2 minutes. After 1 minute and 30 seconds the index is increased |
TRACK AUDIO
FILE "01.wav" 01:00:00 00:30:00
SILENCE 00:02:00
FILE "02.wav" 02:00:00
INDEX 01:30:00
FILE "01.wav" 01:00:00 00:30:00
SILENCE 00:02:00
FILE "02.wav" 02:00:00
INDEX 01:30:00
Take all wav files beneath the current folder and create a toc file for an audio CD without breaks
{
echo CD_DA;
find . -name "*.wav" | while read line;
do
echo "TRACK AUDIO";
echo "NO COPY";
echo "FILE "$line" 00:00:00";
echo;
done
} > myaudiocd.toc
echo CD_DA;
find . -name "*.wav" | while read line;
do
echo "TRACK AUDIO";
echo "NO COPY";
echo "FILE "$line" 00:00:00";
echo;
done
} > myaudiocd.toc
Ethereal
Filter
(not tcp.port eq 22 and ip.addr eq 10.0.0.3 )
!(ip.addr eq 10.0.0.3)
!(ip.addr eq 10.0.0.3)