Tuesday, April 16, 2013

Takeout a table from a full mysql database dump


vim MyDumpSplitter.sh
#!/bin/sh
#SPLIT DUMP FILE INTO INDIVIDUAL TABLE DUMPS
# Text color variables
txtund=$(tput sgr 0 1)    # Underline
txtbld=$(tput bold)       # Bold
txtred=$(tput setaf 1)    # Red
txtgrn=$(tput setaf 2)    # Green
txtylw=$(tput setaf 3)    # Yellow
txtblu=$(tput setaf 4)    # Blue
txtpur=$(tput setaf 5)    # Purple
txtcyn=$(tput setaf 6)    # Cyan
txtwht=$(tput setaf 7)    # White
txtrst=$(tput sgr0)       # Text reset

TARGET_DIR=”.”
DUMP_FILE=$1
TABLE_COUNT=0
if [ $# = 0 ]; then
echo “${txtbld}${txtred}Usage: sh MyDumpSplitter.sh DUMP-FILE-NAME${txtrst} — Extract all tables as a separate file from dump.”
echo “${txtbld}${txtred}       sh MyDumpSplitter.sh DUMP-FILE-NAME TABLE-NAME ${txtrst} — Extract single table from dump.”
echo “${txtbld}${txtred}       sh MyDumpSplitter.sh DUMP-FILE-NAME -S TABLE-NAME-REGEXP ${txtrst} — Extract tables from dump for specified regular expression.”
exit;
elif [ $# = 1 ]; then
#Loop for each tablename found in provided dumpfile
for tablename in $(grep “Table structure for table ” $1 | awk -F”\`” {‘print $2′})
do
#Extract table specific dump to tablename.sql
sed -n “/^– Table structure for table \`$tablename\`/,/^– Table structure for table/p” $1 > $TARGET_DIR/$tablename.sql
TABLE_COUNT=$((TABLE_COUNT+1))
done;
elif [ $# = 2  ]; then
for tablename in $(grep -E “Table structure for table \`$2\`” $1| awk -F”\`” {‘print $2′})
do
echo “Extracting $tablename…”
#Extract table specific dump to tablename.sql
sed -n “/^– Table structure for table \`$tablename\`/,/^– Table structure for table/p” $1 > $TARGET_DIR/$tablename.sql
TABLE_COUNT=$((TABLE_COUNT+1))
done;
elif [ $# = 3  ]; then
if [ $2 = "-S" ]; then
for tablename in $(grep -E “Table structure for table \`$3″ $1| awk -F”\`” {‘print $2′})
do
echo “Extracting $tablename…”
#Extract table specific dump to tablename.sql
sed -n “/^– Table structure for table \`$tablename\`/,/^– Table structure for table/p” $1 > $TARGET_DIR/$tablename.sql
TABLE_COUNT=$((TABLE_COUNT+1))
done;
else
echo “${txtbld}${txtred} Please provide proper parameters. ${txtrst}”;
fi
fi
#Summary
echo “${txtbld}$TABLE_COUNT Table extracted from $DUMP_FILE at $TARGET_DIR${txtrst}”
——-
usage –>
sh MyDumpSplitter.sh database_fulldump.sql tablename

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