Unix Commands

Unix_Commands.txt

### system ###

# Disc Space Usage
df -h

# Folder size
du -sh <folder_name>

# Process Information
top

### PDF ###

# shrink a pdf in filesize (2 steps)

1) convert pdf to ps (better with acroread)
acroread -toPostScript Bafög2008.pdf

2) reconvert ps to pdf with other compression settings
ps2pdf -dPDFSETTINGS=/screen Bafög2008.ps Bafög2008opt.pdf

### dvd ###

# copy dvd fully
vobcopy -m -t $FILEPREFIX

# make a small vob file for experiments
mencoder Dateiname.vob -ovc copy -oac copy -ss 400 -endpos 30 -o kleine_testdatei.vob 

#########

# mount a mdf image
sudo mount CNC3.mdf ./cnc3ke/ -o loop

# restore/reconfigure grub boot loader ( sudo grub-install --root-directory=/mnt /dev/sda sudo mount /dev/sda2 /mnt )
1) boot from live cd and open terminal
2) sudo fdisk -l (to show partition configuration)
3) sudo mount /dev/sda2 /mnt (mount root partition - supposed to be /dev/sda2)
4) sudo grub-install --root-directory=/mnt /dev/sda