A chronological documentation test project, nothing serious, really!
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”
Sometimes it’s a good idea to remove the hidden data a JPG file contains, like when you publish picures on the Internet. An easy way to remove all EXIF-tags from your JPG files is to run the command using jhead jhead -purejpg *.jpg
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
grep recursively through subdirectories for files that match a specific pattern: grep -l -r –include=*.doc regex * The equivalent command unsing find: find . -name ‘*.doc’ -exec grep -l regex \{\} \; The option after grep is the lowercase letter L, not the number 1). Remove the -l to see the actual matches instead of […]