Transform variables
Transform "foo.txt" into "foo.html"
#!/bin/bash
myvar="foo.txt"
newvar=`echo $myvar | sed 's/\.txt/\.html/'`
echo "before = $myvar"
echo "new = $newvar"
Shell Loops
#!/bin/bash
# -- works with /bin/sh as well :-)
for yourvar in foo bar more
do
echo "- $yourvar"
done
MySQL Backup Script
#!/bin/bash
DBNAME=dbboard
echo `/bin/date`
# YYYYMMDD:
mydate=`date +%Y%m%d`
mkdir /var/lib/mysql/$DBNAME/$mydate-all
echo -n "DB Dump all ... "
/usr/bin/mysqldump -u root $DBNAME >/var/lib/mysql/$DBNAME/$mydate-all/$DBNAME.dump
echo -n "done at "
echo `/bin/date`
cd /var/lib/mysql/$DBNAME
/bin/tar -czf /var/lib/mysql/$DBNAME/$mydate-all.tar.gz $mydate-all
/bin/rm -Rf /var/lib/mysql/$DBNAME/$mydate-all
ls -lt /var/lib/mysql/$DBNAME/*.tar.gz
Exit, if a specific process is running
#!/bin/bash
if [ `/usr/local/bin/getpid yourprocess.pl` ]; then
echo "Better luck next time"
exit 0
fi
echo "Continuing..."
echo "DELETE FROM foo" |psql -d bar
See also:
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