pdftk

http://www.pdfjoin.com/

온라인 형태로 pdf 파일을 여려개 올리면 

한개로 합치는 유틸 

pdftk-

JAVA_HOME=/usr/java

export JAVA_HOME

PATH=$PATH:$JAVA_HOME/bin

CLASSPATH=$CLASSPATH:$JAVA_HOME/lib

=========================

gcj: command not found

yum -y install libgcj*

yum -y install  libstdc++

/bin/sh: gcjh: command not found

http://www.multiprecision.org/?prog=mpc&page=download

n of the gmp/mpfr/mpc libraries... no

configure: error: Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.

Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify

their locations.  Source code for th