Commands by jemmille

Commands by jemmille (3)

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Find the location of the currently loaded php.ini file

Quick and easy way to find out which php.ini file is being used. Especially useful if you just need to find the location of the file for editing purposes. Show Sample Output
This is sample output - yours may be different.
```
[user@server ~]$ php -i |grep php.ini
Configuration File (php.ini) Path => /usr/local/lib
Loaded Configuration File => /usr/local/lib/php.ini
```
5

php -i | grep php.ini

jemmille · 2009-12-23 15:52:20 5
print crontab entries for all the users that actually have a crontab

Lists crontab for all users on system that have crontabs. Show Sample Output
This is sample output - yours may be different.
```
=== crontab for username ===
MAILTO="server@servername.com"

=== crontab for username2 ===
15 0 0 0 0 /some/command/to/run
```
-5

for USER in `ls /var/spool/cron`; do echo "=== crontab for $USER ==="; echo $USER; done

jemmille · 2009-10-08 23:51:43 3
Quickly clean log files (assuming you don't want them anymore)

Empties all files in /var/log over 5000k. Useful if /var goes crazy or if you just haven't cleaned up in a while.
This is sample output - yours may be different.
0

for file in `find /var/log/ -type f -size +5000k`; do echo " " > $file; done

jemmille · 2009-07-03 16:26:36 6

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Use acpi and notify-send to report current temperature every five minutes.

works best in a shell script run at startup. It will ping localhost once and output to null, after it does that, acpi is called for temperature in fahrenheit and piped through to another loop that feeds notify-send for a tooltip. After waiting five minutes, it will start over.

Show all detected mountable Drives/Partitions/BlockDevices

Yields entries in the form of "/dev/hda1" etc. Use this if you are on a new system and don't know how the storage hardware (ide, sata, scsi, usb - with ever changing descriptors) is connected and which partitions are available. Far better than using "fdisk -l" on guessed device descriptors.

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

Join lines

This command turns a multi-line file into a single line joined with <SOMETEXT>. To skip blank lines, use: $ perl -pe '(eof()||s/^\s*$//)||s/\n//g' file.txt

Create a self-signed certificate for Apache Tomcat

Must be run as root. The 'tomcat' user must have access to the .keystore file. The key and keystore passwords must be the same. The password must be entered into the server.xml config file for Tomcat.

Fire CMD every time FILE (or directory) is updated (on *BSD)

Rename files in batch

Creates PodFeeds.txt, a file that lists the URLs of rhythmbox podcasts from the rhythmdb.xml file.

The first grep any line with pod-feed in it plus the following five lines. The second grep throws out any line not containing . sed removes the leading four spaces then and the trailing . Using a colon as sed's separating character avoids having to escape the /. Works ok with Mythbuntu 9.04 (used mostly as a three line bash script).

Maximum PNG compression with optipng, advpng, and advdef

optipng and advancecomp (for the the advpng and advdef tools) are the best FOSS tools for losslessly compressing PNGs. With the above tool chain, you can cut off as much as 20% off a PNG's file size.

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