Commands by farazyashar (2)

  • Install Linux Kernel Headers on Debian-based systems

    Install the Linux kernel headers for currently running kernel version on Debian-based systems via apt-get Show Sample Output


    2
    sudo apt-get install linux-headers-`uname -r`
    farazyashar · 2013-04-18 03:18:26 9
  • Update all packages installed via homebrew

    As of March 7, 2012: brew update - downloads upgraded formulas brew upgrade [FORMULA...] - upgrades the specified formulas brew outdated - lists outdated installations Note updating all packages may take an excruciatingly long time. You might consider a discriminating approach: run `brew outdated` and select specific packages needing an upgrade. For more information see homebrew's git repository: https://github.com/mxcl/homebrew Show Sample Output


    11
    brew update && brew upgrade `brew outdated`
    farazyashar · 2012-03-07 14:26:41 13

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shuffle lines via perl
Same, without modules... Probably smarter option: just use the shuf command or even sort -R.

Bypass with hexencoding, dump /etc/passwd

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" }

makes screen your default shell without breaking SCP or SFTP
I changed my shell to screen by editing .bashrc, this stopped scp from connecting. Adding two tests before screen fixed them problem.

Speed up upgrades for a debian/ubuntu based system.
Please install aria2c before you try the above command. On ubuntu the command to install aria2c would be: $sudo aptitude install aria2

Terrorist threat level text

Print with tabular

New command with the last argument of the previous command.

List the most recent dates in reverse-chronological order
bash brace expansion, sequence expression

get a mysqldump with a timestamp in the filename and gzip it all in one go
Performs a mysqldump and gzip-compresses the output file with a timestamp in the resulting dump file. Inspect the file for integrity or fun with this command afterward, if you desire: $ zcat mysqldump-2009-06-12-07.41.01.tgz | less

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