A chronological documentation test project, nothing serious, really!
Today I had to solve a RPM problem on a Red Hat Enterprise Linux WS release 4 (Nahant Update 6) system (RHEL4) where there were duplicate packages when querying the rpm database. This had happened after an upgrade to update 6 using up2date from the command line. It seemed like i386 and x64 packages had […]
I wanted to make a whole year calendar and found pcal, a command line tool. pcal -F 1 -E -B -O -p -w -o 2008.ps 2008 -F starting weekday; 1 is Monday -E specifies European formatted dates -B leave unused date boxes blank, default is grey -O selected days will be printed as outlined characters […]
This bach script makes separate backup files of all the databases in mysql and saves the result in the mysql_backup folder. #!/bin/bash -v USERNAME=’yourusername’ PASSWORD=’yourpassword’ HOSTNAME=’yourhostname’ BackupFolder=’/backup’ for i in $(echo ‘SHOW DATABASES;’ | mysql –user $USERNAME -p$PASSWORD -h $HOSTNAME | grep -v ‘^Database$’ ); do mysqldump –user $USERNAME -p$PASSWORD -h $HOSTNAME –opt $i > […]
for file in *htm ; do mv $file `basename $file htm`html; done”
Sorting IP addresses using sort is not easy because the dot confuses sort. This line makes it possible to sort by the whole value of the address sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 ipaddresses.txt You can also sort by the last octet sort -r. -n +3.0 ipaddresses.txt