DZone Snippets: Kumar303's Code Snippets

solve svn error "can't recode string" on Mac OS X

kumar303 (kumar mcmillan) — Fri, 15 Apr 2005 01:32:37 GMT

was getting this error on certain files until I added this to ~/.bash_profile :

export LC_CTYPE="en_US.UTF-8"

export LANG="en_US.UTF-8"

automatically authorize a remote host (SSH key swap)

kumar303 (kumar mcmillan) — Sat, 09 Apr 2005 00:48:13 GMT

use with caution! This script will copy your pub key to a remote host so you can login or run remote scripts without a password. IMPORTANT: if you need to run a single script on the remote host, it would be better to authorize a key for just that script.

#!/bin/bash

# kumar.mcmillan -at- farmdev.com



function usage()

{

    echo ""

    echo "Authorizes a host for automatic SSH use by sending your key to the remote host ..."

    echo "Usage: $0 remote_host_to_authorize [username:=defaults to current username]"

    echo ""

}



function cleanup()

{

    if [ -f $TEMP_PUB_KEY_XFER ]

    then

        rm $TEMP_PUB_KEY_XFER

    fi

}



function exit_on_error()

{

    cleanup

    exit 1

}



if [ $# -lt 1 -o "$1" = "-h" -o "$1" = "--help" ]

then

    usage

    exit 0

fi



PUB_KEY=~/.ssh/id_dsa.pub

if [ $# -eq 2 ]; then

    USER=$2

else

    USER=`whoami`

fi

HOST_TO_AUTH=$1

TEMP_PUB_KEY_XFER=/tmp/$USER"_TEMP_KEY"



echo "checking for $PUB_KEY ..."

if [ ! -f $PUB_KEY ]; then

    echo "generating your dsa public key (leave passphrase blank and save to $PUB_KEY when prompted) ..."

    ssh-keygen -t dsa

    if [ $? -ne 0 ]; then

        echo "ssh-keygen failed"

        exit_on_error

    fi

fi

echo "OK"



echo "for the following commands you will be asked to supply your password for $HOST_TO_AUTH :"



echo "copying a temp pub key to $HOST_TO_AUTH ..."

cat $PUB_KEY > $TEMP_PUB_KEY_XFER

chmod 700 $TEMP_PUB_KEY_XFER

echo "OK"



remote_key=`basename $TEMP_PUB_KEY_XFER`

scp $TEMP_PUB_KEY_XFER $USER@$HOST_TO_AUTH:~/$remote_key

if [ $? -ne 0 ]; then

    echo "scp failed"

    exit_on_error

fi

    

echo "authorizing $HOST_TO_AUTH for automatic SSH use ..."

ssh $USER@$HOST_TO_AUTH "cat ~/$remote_key >> ~/.ssh/authorized_keys; rm ~/$remote_key"

if [ $? -ne 0 ]; then

    echo "ssh failed"

    exit_on_error

fi

echo "OK"



cleanup

echo "authorization successful!  you can now login automatically to $HOST_TO_AUTH"

exit 0

Browse pydoc locally ...

kumar303 (kumar mcmillan) — Fri, 08 Apr 2005 03:39:18 GMT

Opens pydoc in your browser. If pydoc has not been started it starts it for you.



#!/bin/bash



PYDOC=`which pydoc`

if [ ! -x ${PYDOC} ]

then

    echo "could not find executable pydoc (tried: ${PYDOC})"

    exit 1

fi



# passthru ...

if [ $# -gt 0 ]

then

    ${PYDOC} $@

    exit $?

fi



#--------------------------------------

# or else... start it up automagically :



PYDOC_PORT=9000

PYDOC_SERVER=http://localhost:${PYDOC_PORT}/

running=0

pydoc_pses=0



function browse_docs()

{

    open ${PYDOC_SERVER}

}



for ps in `ps ax | grep "${PYDOC}" | awk '{ print $1 }'`

do

    let pydoc_pses++

done



if [ $pydoc_pses -ge 2 ]

then

    browse_docs

else

    ${PYDOC} -p ${PYDOC_PORT} &

    until `curl -o /dev/null ${PYDOC_SERVER} &>/dev/null`

    do

        echo "waiting for pydoc server ..."

        sleep 2

    done

    browse_docs

fi

exit 0