Commands by thetrivialstuff

Commands by thetrivialstuff (2)

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find sparse files

Prints the path/filename and sparseness of any sparse files (files that use less actual space than their total size because the filesystem treats large blocks of 00 bytes efficiently).
This is sample output - yours may be different.
2

find -type f -printf "%S\t%p\n" 2>/dev/null | gawk '{if ($1 < 1.0) print $1 $2}'

thetrivialstuff · 2011-07-02 19:22:49 6
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 4

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Convert decimal numbers to binary

Convert some decimal numbers to binary numbers. You could also build a general base-converter: $ function convBase { echo "ibase=$1; obase=$2; $3" | bc; } then you could write $ function decToBun { convBase 10 2 $1; }

Displays the version of the Adobe Flash plugin installed

This is for Debian, simply change the path if your Flash plugin is installed elsewhere.

Report information about executable launched on system

Aureport is a tool for displaying auditd system log. -x options cause to display launched executable on system. Aureport work with auditd so auditd must be installed an running on a system. Tested on CentOS / Debian

make directory with current date

Ultimate current directory usage command

An NCurses version of the famous old 'du' unix command

Execute a command at a given time

read squid logs with human-readable timestamp

Monitor open connections for httpd including listen, count and sort it per IP

It's not my code, but I found it useful to know how many open connections per request I have on a machine to debug connections without opening another http connection for it. You can also decide to sort things out differently then the way it appears in here.

Finds all files from / on down over specified size.

Very useful for finding all files over a specified size, such as out of control log files chewing up all available disk space. Fedora Core x specific version.

Embed next line on the end of current line using sed

N: On the current line, sed will display it on pattern space, plus a \n (new line); but s/\n//: Will get rid of new line displayed on pattern space, joining the current line's end with the start of the next line Useful in scripts.

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