Delete all files matching a pattern within a directory recursively
find . | grep -r -e “SomeFilePrefix.*\.php” | xargs rm
Archive for Uncategorized
Backup a folder
I usually keep this script in the
“/usr/bin/archive” file and make it executable.
#!/bin/bash
FOLDER=$1
NOW=$(date +"%Y-%m-%d")
OUTPUT="tar -cjf $FOLDER-$NOW.tar.bz $FOLDER"
echo $OUTPUT
$OUTPUT
Usage:
$ archive folder_name
Will create a file “folder_name-2010-07-18.tar.bz” in the current directory. Then you can rm -rf the folder and copy the archive to your archived location.
This goes well with “/usr/bin/archive_all”
#!/bin/bash
for file in *;
do
if [ -d "$file" ]; then
archive "$file";
fi
done;
This will create archives of all the subdirectories in the current directory. This is good for archiving old projects that don’t need to be uncompressed anymore.
Programming Considerations
Performance (the universal currency of software)
Maintainability
– modularity
Resources
– Network
– Memory
Financial Cost
– Programmer Time
– Hardware Cost
– Licenses Cost
– Electricity Cost
Human Resources
– Programmer Time
Time to Market
Correctness
Simplicity
User Friendliness (usability)
Stability
Scalability
Feature Set
Security
Business Integration
– Coordination and Alignment with Domain Knowledge Experts
– Marketing
– Product Management
Feasibility
Keep an Ubuntu server’s time up to date
Install rdate
apt-get install rdate
Edit the cron table
crontab -e
Add this entry
30 5 * * * /usr/bin/rdate -s time-a.nist.gov