Commands by jnash (12)

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AES file encryption with openssl
To decrypt: openssl aes-256-cbc -d -in secrets.txt.enc -out secrets.txt.new Reference: http://tombuntu.com/index.php/2007/12/12/simple-file-encryption-with-openssl Optional parameter -a makes output base64 encoded, can be viewed in text editor or pasted in email

a short counter
Maybe you know shorter ?

Create a 5 MB blank file via a seek hole
Similar to the original, but is much faster since it only needs to write the last byte as zero. A diff on testfile and testfile.seek will return that they are the same.

zgrep across multiple files

useless load
check your load with top... Start more of these jobs to get an multi-core cpu busy...

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"

List only locally modified files with CVS

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"

Rename files in batch

Find all SUID binaries


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