Commands by aceiro

Commands by aceiro (3)

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Restart X11 with HUP signal
This is sample output - yours may be different.
2

kill HUP `pidof '/usr/bin/X'`

aceiro · 2010-07-16 03:55:13 1
show space used by postgres

this command shows the space used in postgres directory. Show Sample Output
This is sample output - yours may be different.
```
4	./pg_twophase
5364	./base/17868
5268	./base/11563
5268	./base/1
114288	./base/11564
4	./base/pgsql_tmp
5736	./base/19846
135932	./base
268584	.
268584	total
```
-5

while (( 1==1 )); do du -c . >> output.log; sleep 2; done; tail -f output.log

aceiro · 2010-07-12 17:23:45 0
Get IPv4 of eth0 for use with scripts

only output the ip addres. I put double pipe with sed because not parse with operator OR (|) in redex. Show Sample Output
This is sample output - yours may be different.
```
192.168.1.102
```
0

ifconfig eth0 | perl -ne "print if m/inet addr:((\d+\.){3})+/" | sed "s/inet addr//" | sed "s/Bcast//" |awk -F: '{print $2}'

aceiro · 2010-06-26 12:07:15 1

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Convert (almost) any video file into webm format for online html5 streaming

If you're using the experimental vorbis encoder (homebrew version of libffmpeg)

check open ports without netstat or lsof

Find the package that installed a command

To get the CPU temperature continuously on the desktop

No need for a colon, and one less semicolon too. Also untested.

Find usb device

I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

check open ports without netstat or lsof

Another Matrix Style Implementation

Create a backup of the file.

It will create a backup of the filename. The advantage is that if you list the folder the backups will be sorted by date. The command works on any unix in bash.

Dump dvd from a different machine onto this one.

You can use this to directly dump from machine A (with dvd drive) to machine B (without dvd drive) . I used this to copy dvd using my friend's machine to my netbook. Above command is to be issued on machine B. Advantages : 1) No wasting time dumping first to machine A and then copying to Machine B. 2) You dont need to use space on Machine A. In fact, this will work even when Machine A doesnt have enough hdd space to dump the DVD. Use -C ssh option on slow networks (enables compression). you can replace "dd if=/dev/dvd" with any ripping command as long as it spews the iso to stdout.

Big (four-byte) $RANDOM

Sometimes, in a shell script, you need a random number bigger than the range of $RANDOM. This will print a random number made of four hex values extracted from /dev/urandom.

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