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Clear mistyped passwords from password prompt
Type ^u at password prompt to clear a mistyped password.

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

Get a list of the top 10 heaviest tables in your mysql database - useful for performance diagnostics

Access to specific man page section
You can view the man pages from section five by passing the section number as an argument to the man command

Rename files in batch

list files recursively by size

View Owner, Group & Permissions.
#Alias alias perm="stat -c '%n %U:%G-%a'" #Function perm() { for ll in $@; do stat -c "%n %U:%G-%a" "$ll"; done; }

Show directories
Show only the subdirectories in the current directory. In the example above, /lib has 135 files and directories. With this command, the 9 dirs jump out.

send DD a signal to print its progress
every 1sec sends DD the USR1 signal which causes DD to print its progress.

Sort installed rpms in alphabetic order with their size.


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