All commands (14,187)
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1mencoder -idx Your_Input_Video_File -ovc lavc -oac mp3lame -audiofile Your_Audio_track.mp3 -o Output_File.avi
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If you have some drive imaging to do, you can boot into any liveCD and use a commodity machine. The drives will be written in parallel. To improve efficiency, specify a larger block size in dd:
dd if=/dev/sda bs=64k | tee >(dd of=/dev/sdb bs=64k) | dd of=/dev/sdc bs=64kTo image more drives , insert them as additional arguments to tee:dd if=/dev/sda | tee >(dd of=/dev/sdb) >(dd of=/dev/sdc) >(dd of=/dev/sdd) | dd of=/dev/sde23dd if=/dev/sda | tee >(dd of=/dev/sdb) | dd of=/dev/sdc -
For debian likes, that's in python-xml package.
-1xmlproc_parse.python-xml &>/dev/null <FILE> || exit 1 -
1xmllint --noout some.xml 2>&1 >/dev/null || exit 1
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Print out contents of file with line numbers. This version will print a number for every line, and separates the numbering from the line with a tab. Show Sample Output
-1sed = <file> | sed 'N;s/\n/\t/' -
Parsing the output of ls is never a good idea for any reason. Using find this way: - works with files that have spaces in their names. - actually lists "sub folders" and not of all files and folders. - does not break if there are a huge number of files in the current directory.
-6find . -maxdepth 1 -type d -not -name . -exec du -sh {} + -
This command allow you to set the swappiness var at 50 (default is 60). The value interval must be set between 0 and 100. If swappiness is high=Swap usage is high, if swappiness is low=Ram usage is high.
8sysctl vm.swappiness=50 -
it provides the ratio used for the RAM and The SWAP under Linux. When swappiness is high, Swap usage is high. When swappiness is low, Ram usage is high. Show Sample Output
3sysctl -a | grep vm.swappiness -
Alternative of OJM snippet : This one show the IP too, where ports bind. It's very important, because if there's only 127.0.0.1 instead of 0.0.0.0, connections from internet are rejected.
3netstat -nptl -
4zcat access_log.*.gz | awk '{print $7}' | sort | uniq -c | sort -n | tail -n 20
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3sudo lsof -P -i -n -sTCP:LISTEN
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Another way of sending an attachment. -s : subject file : file to be sent
4mpack -s "Backup: $file" "$file" email@id.com -
For fancier and cleaner output, try the following snippet :
showendlines(){ while read i; do od --address-radix=n --width=$(wc -c <<< "$i") -c <<< "$i" | perl -pe 's/.\K\s{2,3}//g'; done < $1 | grep --color '\\.'; }Now you can run that with :showendlines <FILE>Thanks to prince_jammys to "debug" my English ;)7od -c <FILE> | grep --color '\\.' -
Send it the easy way, with MIME and everything handled for you by an app that knows best.
4mutt your@email_address.com -s "Message Subject Here" -a attachment.jpg </dev/null -
4nmap -p 1-65535 --open localhost
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on this way we can define the body too
0{ echo -e "$body"; uuencode "$outfile" "$outfile"; } | mail -s "$subject" "$destaddr" ; -
There's too many options to number, My curiosity has forced me to make it using only sed. Maybe useful... or not... :-S
-1sed '/./=' infile | sed '/^/N; s/\n/ /' -
7du -sh */
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-4ls | xargs du -sh
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Tested on MacOS X
5unzip -p some.docx word/document.xml | sed -e 's/<[^>]\{1,\}>//g; s/[^[:print:]]\{1,\}//g' -
Use if you have pictures all over the place and you want to copy them to a central location Synopsis: Find jpg files translate all file names to lowercase backup existing, don't overwrite, preserve mode ownership and timestamps copy to a central location
4find . -iname "*.jpg" -print0 | tr '[A-Z]' '[a-z]' | xargs -0 cp --backup=numbered -dp -u --target-directory {location} & -
-1locale | grep LANG=
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The 1440 is the number of bytes, and the A: specifies the floppy drive.
-1mformat -f 1440 A: -
-t option tells the system to look for a msdos filesystem The /dev/fd0 is your floppy drive ( This may be different for you check /dev folder to confirm) /mnt/floppy is the point where you want to mount the device to
-2mount -t msdos /dev/fd0 /mnt/floppy -
1mencoder -ovc xvid -oac mp3lame -srate 44100 -af lavcresample=44100 -xvidencopts fixed_quant=4 Foo.wmv -o Bar.avi
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