Commands using grep (1,935)

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Create a self-extracting archive for win32 using 7-zip
using `cat` under *NIX - just because you help manage M$ Windoze *doesn't* mean you should have to resort to using it! You can also make custom win32 installers with the 7zip "extras" package: $ cat /path/to/7zSD.sfx /path/to/config.txt /path/to/archive > setup.exe

Get your outgoing IP address
Instead of opening your browser, googling "whatismyip"... Also useful for scripts. dig can be found in the dnsutils package.

Rename files in batch

Search back through previous commands
Searches backwards through your command-history for the typed text. Repeatedly hitting Ctrl-R will search progressively further. Return invokes the command.

Compress blank lines in VIM
This command will squeeze all consequent blank lines (including those with only space and tab charactes) to one. It will also empty the resulting line (remove the "|s/.*//" part if you don't need that).

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"

Search some text from all files inside a directory

Look up a unicode character by name
No need for further filedes or substitution for splitting. Simply use read a b

Rip a DVD to AVI format
Substitute whatever track number you want into the "dvd://1" parameter. The "-aid 128" is to select the English language.

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


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