A shell script for modifying the bounding box of the input eps files using ghostscript.

modify_boundingbox.sh

#!/bin/sh
#
# modify_boundingbox.sh
#
# original script coded by Takashi Unuma, Kyoto Univ.
# last modified: 2014/07/06
#
# required commands: basename, gs, sed, and awk
#

# check arguments
if test $# -lt 1 ; then
    echo "USAGE: $(basename $0) [EPS file(s)]"
    exit
fi

# execute section
for file in $* ; do
    # get a "true" bounding box information in the specified eps file
    bbinfo=$(gs -q -dNOPAUSE -dBATCH -sDEVICE=bbox ${file} 2>&1 | sed -e "s/\%/\\\%/g" -e "s/\:/\\\:/g" -e "s/\./\\\./g" -e "s/[[:blank:]]/\\\ /g" | awk '{printf $0}')
    # overwrite the information of bounding box
    sed -i -e "2c${bbinfo}" -e "3d" ${file}
done