usage: renam

in a script you must replace $PPID with $(awk '{print $4}' /prod/$PPID/stat)

This command limits the oputut of git log to one-line per commit and an abbreviated commit ID.

find -printf '%u\n' | sort | uniq #just users

find -printf '%g\n' | sort | uniq #just groups

If you have tried to change your prompt and made a mistake, use this command to retrieve a standard prompt.

If you used the export command when you changed your prompt, also use it there:

export PS1='$PWD$ '

Solution to activate (or deactivate with false instead of true) the global mandatory proxy under Ubuntu (not tested elsewhere).

Others keys you can configure :

gconftool-2 --set "/system/http_proxy/host" --type string "

gconftool-2 --set "/system/http_proxy/port" --type int 8080

gconftool-2 --set "/system/http_proxy/ignore_hosts" --type list --list-type string ["localhost","127.0.0.1","*.local"]

gconftool-2 --set "/system/proxy/mode" --type string manual

When you need to work a long time in the same directory, which prompt is of the type:

bob@ubuntu:~/directory1/directory2/directory3/directory4/directory5$

it is better to hide all this with the command PS1='$'

To retrieve a normal prompt, type: PS1='$PWD$ '

watch the seconds of your life tick away - replace YYYY-mm-dd HH:MM:ss w/ your birthtime.

used in an if-then-else in case the default shell is ksh, not bash.

The $(basename ${0#-}) is handy to echo which shell and strip the dash some flavors put in front of "bash"

if [ $(basename ${0#-}) == "bash" ] ; then

export PS1='\[\e]0;\h \u \w\a\]\n\[\e[0;34m\]\u@\h \[\e[33m\]\w\[\e[0;32m\]\n\$ '

else

HOST=`hostname`

ESC=`echo "\033"`

BEL=`echo "\007"`

RAW=`echo "\r"`

export PS1='-${RAW}${ESC}]0;${HOST} ${USER}${BEL}-${ESC}[0;34m${USER}${ESC}[0m@${ESC}[0;34m${HOST%%.*}${ESC}[0;33m${ESC}[0m $ '

fi

this application monitors the apps you use most often and load them into memory with their libraries and other dependencies.

So now, when you launch Firefox or Thunderbird or OpenOffice, the display is immediate as on Mac.

Do ls with permissions written in octal form.

The example will create a directory called "

Caveats: @imports of css files will not be converted.

kill all processes of a program

Today

special thanks to XwZ :)

HTP (HTTP Time Protocol) is an alternative way of getting "good enough" synchronized time. htpdate will give you near-second accuracy.

It works where NTP/SNTP does not because of firewalls and proxies. Of course, if NTP/SNTP can be used, use that instead.

http://www.clevervest.com/twiki/bin/view/HTP

htp is not in Ubuntu!

Just tape:

sudo -s

your passwd

startx -- :1

OMG, you are a Gentoo junkie.

-funroll-loops-me-harder ;-)

http://ccache.samba.org/

ccache is a compiler cache, which speeds up your compiler on successive runs, because it caches intermediate compiled output.

I sometimes want to know what packages are installed on my Ubuntu system. I still haven't figured out how to use aptitude effectively, so this is the next best thing. This allows finding by name.

The grep '^ii' limits the display to only installed packages. If this is not specified, then it includes listing of non-installed packages as well.

Given a GNU Make file version 3.81 with the following entries:

.PHONY: runtest

runtest: $(ARCHNAME) $(TESTAUTOEXES)

@for i in $(TESTAUTOEXES) ; do \

echo ">>>> Running test harness $$i" ; \

env $(RUNTESTENV) $$i ; done

.PHONY: runtestsingle

runtestsingle: $(ARCHNAME)/test/auto_$(testsingle).exe $(ARCHNAME)

@for i in $< ; do \

echo ">>>> Running test harness $$i" ; \

env $(RUNTESTENV) $$i ; done

(ARCHNAME is something like ix86-linux-gnu)

Instead of typing gmake runtest to run all the tests, you can run one specific test with the example command.

The sample output is from compiling a C++ program using Boost::Test testing framework.

Replace 10.0.0.0/8 with your largest local subnet. replace 10.1.1.123:3128 with your proxy information.. Note this only works with a proxy server configured for passive setup..

Now your firefox transparently proxy's stuff destined outside your network.. and Doesn't proxy stuff inside your network. as well as all your other favorite web applications. curl, wget, aria2 ect.

I can remember "cp -av" on Unix like systems to copy files and directories. The same can be done on Windows without extra software, somewhat.

The switches mean:

/E Copies directories and subdirectories, including empty ones.

Same as /S /E. May be used to modify /T.

/H Copies hidden and system files also.

/Y Suppresses prompting to confirm you want to overwrite an

existing destination file.

/Z Copies networked files in restartable mode.

/I If destination does not exist and copying more than one file,

assumes that destination must be a directory.

/K Copies attributes. Normal Xcopy will reset read-only attributes.

/F Displays full source and destination file names while copying.

I don't type that all the time, I stick it into a file called "cpav.cmd" and run that.

http://support.microsoft.com/kb/323007