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Commands tagged xz (4)

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Create a tar archive using xz compression

Compress files or a directory to xz format. XZ has superior and faster compression than bzip2 in most cases. XZ is superior to 7zip format because it can save file permissions and other metadata data.
This is sample output - yours may be different.
1

tar -cJf myarchive.tar.xz /path/to/archive/

Sepero · 2014-03-13 03:34:18 6
Create a tar archive using xz compression

compress directory archive with xz compression, if tar doesn't have the -J option (OSX tar doesn't have -J)
This is sample output - yours may be different.
1

tar -cvf - /path/to/tar/up | xz - > myTarArchive.tar.xz

razerwolf · 2014-03-18 19:51:50 7
have tar decide compression based on filename

the -a flag causes tar to automatically pick the right compressor to filter the archive through, based on the file extension. e.g. "tar -xaf archive.tar.xz" is equivalent to "tar -xJf archive.tar.xz" "tar -xaf archive.tar.gz" is equivalent to "tar -xzf archive.tar.gz" No need to remember -z is gzip, -j is bzip2, -Z is .Z, -J is xz, and so on :)
This is sample output - yours may be different.
0

tar -caf some_dir.tar.xz some_dir

thetrivialstuff · 2011-06-09 19:00:06 3
Parallel XZ with progress bar

You need: pxz for the actual work (http://jnovy.fedorapeople.org/pxz/). The function could be better with better multifile and stdin/out support.
This is sample output - yours may be different.
0

function xzv() { THREADS=`grep processor /proc/cpuinfo | wc -l`; for file in $*; do pv -s `stat -c%s $file` < $file | pxz -q -T $THREADS > $file.xz ; done; }

oernii2 · 2011-12-14 08:22:08 5

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Use acpi and notify-send to report current temperature every five minutes.

works best in a shell script run at startup. It will ping localhost once and output to null, after it does that, acpi is called for temperature in fahrenheit and piped through to another loop that feeds notify-send for a tooltip. After waiting five minutes, it will start over.

Retrieve a random command from the commandlinefu.com API

Seeing that we get back plain text anyway we don't need lynx. Also the sed-part removes the credit line.

Find broken symlinks

Locate broken symlinks in the current directory. Also useful, to remove broken links: $ find . -type l ! -exec test -e {} \; -print0 | xargs -0 rm

list folders containing less than 2 MB of data

This command will search all subfolders of the current directory and list the names of the folders which contain less than 2 MB of data. I use it to clean up my mp3 archive and to delete the found folders pipe the output to a textfile & run: $ while read -r line; do rm -Rv "$line"; done < textfile

Get all mac address

I prefer the ip command to ifconfig as ifconfig is supposedly going to be deprecated. Certain IP address aliases can only be seen with the ip command (such as the ones applied by RHCS).

Emergency Alien Invasion Warning

When aliens invade Earth, be first to warn your neighbours by placing your computer screen at a window and executing this potentially Earth-saving command. Ctrl C when aliens are defeated.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Set all CPU cores' CPU frequency scaling governor to maximum performance

Get list of servers with a specific port open

Change the -p argument for the port number. See "man nmap" for different ways to specify address ranges.

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

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Commands tagged xz (4)

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