Commands by rodolfoap

$ cat script.bash

#!/bin/bash
echo "hello, world"

$ read -p 'Script: ' S && C=$S.crypt H='eval "$(dd if=$0 bs=1 skip=// 2>/dev/null|gpg -d 2>/dev/null)"; exit;' && gpg -c<$S|cat >$C <(echo $H|sed s://:$(echo "$H"|wc -c):) - <(chmod +x $C)

Script: script.bash
Enter passphrase:
Repeat passphrase:

$ cat script.bash.crypt 

eval "$(dd if=$0 bs=1 skip=70 2>/dev/null|gpg -d 2>/dev/null)"; exit;
%3@5%7%f$2&s*ty7%8@j$j!8)(&@@@

$ ./script.bash.crypt 
Enter passphrase:

hello, world

$ cat script.bash 

#!/bin/bash
echo "Hello, world"

$ echo "eval \"\$(dd if=\$0 bs=1 skip=XX 2>/dev/null|gpg -d 2>/dev/null)\"; exit" > script.secure; sed -i s:XX:$(stat -c%s script.secure): script.secure; gpg -c < script.bash >> script.secure; chmod +x script.secure
Enter passphrase:
Repeat passphrase:

$ ./script.secure 
Enter passphrase:

Hello, world

$ cat script.secure 
eval "$(dd if=$0 bs=1 skip=69 2>/dev/null|gpg -d 2>/dev/null)"; exit
%6&A2%&F%&B%&%4&%

Use at your own risk.

# dd if=/dev/zero of=T bs=1024 count=10240;mkfs.ext3 -q T;E=$(echo 'read O;mount -o loop,offset=$O F /mnt;'|base64|tr -d '\n');  echo "E=\$(echo $E|base64 -d);eval \$E;exit;">F;cat <(dd if=/dev/zero bs=$(echo 9191-$(stat -c%s F)|bc) count=1) <(cat T;rm    T)>>F
10240+0 records in
10240+0 records out
10485760 bytes (10 MB) copied, 0.127043 s, 82.5 MB/s
T is not a block special device.
Proceed anyway? (y,n) y
1+0 records in
1+0 records out
9104 bytes (9.1 kB) copied, 0.000116352 s, 78.2 MB/s

(before executing next, make sure /mnt is empty and has nothing mounted, otherwise you can lose files)

# bash F
9191
(I entered 9191, is the password, can be modified in the script)

# l /mnt/
drwx------ 2 root root 12K Jan 31 02:33 lost+found/

# df -h
Filesystem        Size  Used Avail Use% Mounted on
...
/dev/loop0        9.7M  1.1M  8.1M  12% /mnt

# mount
...
/root/F on /mnt type ext3 (rw,relatime,data=ordered)

# umount /mnt 

# head -1 F
E=$(echo cmVhZCBPO21vdW50IC1vIGxvb3Asb2Zmc2V0PSRPIEYgL21udDsK|base64 -d);eval $E;exit;

# E=$(echo cmVhZCBPO21vdW50IC1vIGxvb3Asb2Zmc2V0PSRPIEYgL21udDsK|base64 -d);echo $E
(changed eval x echo)
read O;mount -o loop,offset=$O F /mnt;

$ ls

#!/bin/bash
# Example usage for rotating images:
(for FILE in $@; do echo $[100*++x/$#]; mogrify -rotate -90 "$FILE"; done)|zenity --progress --auto-close

call with:

$ ./script file1.gif file2.jpg file3.png ...

$ time printf "%50s\n"|tr \  -
--------------------------------------------------

real	0m0.008s
user	0m0.000s
sys	0m0.008s

N between 1 and 100. Guess? 50
N between 1 and 50. Guess? 20
N between 20 and 50. Guess? 21
Took you 3 tries, Einstein

$ ls myicons/a[b-g]*
myicons/abiword_48.png  myicons/accessories-calculator.png     myicons/acrobat.png
myicons/abiword.png     myicons/accessories-calculator.svg     myicons/acroread.png
myicons/about_kde.png   myicons/accessories-character-map.png  myicons/acroread.svgz
myicons/about_kde.svgz  myicons/accessories-character-map.svg  myicons/add.png
myicons/abrt00.png      myicons/accessories-dictionary.png     myicons/address-book-new.png
myicons/abrt01.png      myicons/accessories-dictionary.svg     myicons/address-book-new.svg
myicons/abrt02.png      myicons/accessories-text-editor.png    myicons/add.svgz
myicons/abrt03.png      myicons/accessories-text-editor.svg    myicons/advanced-directory.png
...

./.esd_auth
./.scummvmrc
./.gnuplot-wxt
./.subversion