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Undocumented syntax, but should work on every shell. It'll list all directories in the current one. Change `*/` into globbing `**/` for recursivity.
lists files and folders in a folder with summary.
Useful if you need to add another key and you using pem files (typical in AWS EC2 Instances).
If you use it in EC2 instances, remember that password authentication is disabled, so you have to use the first key generated when you generated the instance
#4345 also works under windows
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
I like to label my grub boot options with the correct kernel version/build.
After building and installing a new kernel with "make install" I had to edit my grub.conf by hand.
To avoid this, I've decided to write this little command line to:
1. read the version/build part of the filename to which the kernel symlinks point
2. replace the first label lines of grub.conf
grub.conf label lines must be in this format:
Latest [{name}-{version/build}]
Old [{name}-{version/build}]
only the {version/build} part is substituted.
For instance:
title Latest [GNU/Linux-2.6.31-gentoo-r10.201003]
would turn to
title Latest [GNU/Linux-2.6.32-gentoo-r7.201004]"
This is a kind of wrapper around the shell builtin cd that allows a person to quickly go up several directories.
Instead of typing:
cd ../..
A user can type:
cd ...
Instead of:
cd ../../..
Type:
cd ....
Add another period and it goes up four levels. Adding more periods will take you up more levels.