Edmonds Commerce » bash

Apache Log File Analysis Script

Joseph Edmonds — Thu, 14 Mar 2013 14:17:48 +0000

Here is a little bash script we knocked together to track down some malicious activity on a clients server. Using a bit of awk etc to parse the log files we could quickly track down an IP address that was overloading the server and then take steps to block that person. Here is the script: [...]

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Bash timeout and copying text in vim

ross — Thu, 14 Mar 2013 12:59:42 +0000

I have been working with a server that had been configured differently from the way that I prefer. The two biggest complaints that I had about it were that the timeout was set very low, meaning that the connection would break off every five minutes, and that vim had been set up so if you [...]

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Simple Bash Single Process Enforcement

Joseph Edmonds — Thu, 21 Feb 2013 15:06:39 +0000

If you have a bash script that you want to make sure there is only ever one instance of, for example something triggered by cron that might not have finished the next time cron tries to trigger it then you might like this little snippet: This is built for running Magento shell scripts (if you [...]

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Correct recursive backups in bash

ross — Wed, 20 Feb 2013 20:54:57 +0000

Sometime a backup script can go wrong, and rather the overwrite the old files you place a copy of the new ones into the same folder. This can then escalate and before you know it you have multiple levels of the same files. If you just want to flatten these files then this script can [...]

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Bash Terminal Rename Programmatically

Joseph Edmonds — Wed, 16 Jan 2013 12:56:15 +0000

If you have a load of terminals open you might find it handy to be able to rename the window title on the fly. You can do this easily by copying this code into your ~/.bashrc file (or even pasting it into your terminal if you like) If you have pasted this into your ~/.bashrc [...]

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Bash Redirection not Working in Shell Scripts + Solution

ross — Wed, 09 Jan 2013 15:54:46 +0000

I recently needed to trigger a couple of bash scripts through a web browser. Unfortunately PHP shell_exec function grinds to a halt when it is used to trigger a long running / memory intensive script when it is used with Apache. To get round this I instead wrote the command to a file and then [...]

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Tip: Remove spaces from filenames one-liner

martyn — Mon, 26 Nov 2012 16:16:58 +0000

There is often the case when you need to remove spaces from filenames – for instance when importing broken data feeds into Magento or osCommerce systems. The following strips spaces and replaces them with nothing :- or alternatively replace them with underscores :- Or any other character/string combo you like, you can even be more clever moving [...]

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Tip: Parse XML Values in bash e.g. Magento local.xml

admin — Thu, 23 Aug 2012 11:37:58 +0000

Not the most elegant way to do this, and probably could do with some extra tweaks but it works for our purposes, so presented here in case it fits yours : It also strips out the CDATA tags, which we needed to pull the database details from Magento’s local.xml To use this to get, for [...]

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Format searched log files

admin — Thu, 16 Aug 2012 15:45:56 +0000

When you are monitoring a log file you may want to narrow it down, and format the results. This simple one line command will break up the output from a log file to make it easier to quickly read tail -f /path/to/log | grep "search term" | sed 's/\(.*\)/----------\n\1\n----------/' More Reading: Bash timeout and copying [...]

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TIP: SSH add a tunnel to a running session

admin — Wed, 28 Mar 2012 11:39:09 +0000

Useful tip – if you’ve ever been ssh’d into a remote machine and don’t want to break the connection or open a new session just to add a new tunnel, there is a way Press [return] then ~ then C to get to an ssh prompt, then you can add tunnels as you would at [...]

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