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 unixtime to human-readable

Remove a line from a file using sed (useful for updating known SSH server keys when they change)

For example, to remove line 5 from foo, type: vi +5d +wq foo

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Convert spaces in file names to underscores

Clone all repos from a user with lynx

https://wuseman.github.io/wcloner/

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Rotate a video file by 90 degrees CW

Display unique values of a column

Find the unique values of a column utilizing awk. Credits goes to here (posted by "era"): http://www.unix.com/shell-programming-scripting/77138-awk-print-distinct-col-values.html

reset Mageia urpmi media sources to network only

On Mageia (and Mandriva) Linux, this command will clear your existing urpmi configuration and configure it to use only network sources. It can be useful after you have installed from CD/DVD and don't want to continually be prompted to insert CD/DVD each time you install a package. acknowledgement: blino

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