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you will hear how many seconds since 1.1.1970 in english words with billions, millions and thousands.
this is very useful, if you want to get over to use the unixtimestamp instead of the 24 hour clock in your dayly life
Read this before you down voting and comment that it is not working -> Wont work on latest versions ~75> since database file is locked and has to be decrypted. This is useful if you have an old hdd with a chrome installation and want to decrypt your old passwords fast.
create iso image from directory . Usefull for virtualised machine
To create CD ISO image of directories that contain long file name or non-8.3 format (particularly if you want to burn the CD image for use in Windows system), use the -J option switch that generates Joliet directory records in addition to regular iso9660 file names. For example, to create CD image of Vista SP1 directory: mkisofs -o VitaSP1.iso -J VistaSP1
Sometimes in a hurry you may move or copy a file using an already existent file name. If you aliased the cp and mv command with the -i option you are prompted for a confirmation before overwriting but if your aliases aren't there you will loose the target file!
The -b option will force the mv command to check if the destination file already exists and if it is already there a backup copy with an ending ~ is created.
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
Substitute for #11720
Can probably be even shorter and easier.
Several times, I find myself hitting my up arrow, and changing the search term. Unfortunately, I find myself wasting too much time typing:
$ grep kernel /var/log/messages
Redirecting STDIN allows me to put the search term at the end so I less cursor movement to change what I'm searching for:
$ < /var/log/messages grep kernel
If you're using the emacs keyboard binding, then after you press your up arrow, press CTRL+w to erase the word.
If this has already been submitted, I couldn't find it with the search utility.
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"