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Archive of posts filed under the shell category.

Three text processing tasks

Unlikely to help someone, but anyway.

File encryption on the command line

This list is just a reference which hopefully saves some googling. Let's make it clear that we're talking about symmetric encryption here, that is, a password (or better, a passphrase) is supplied when the file is encrypted, and the same password can be used to decrypt it. No public/private key stuff or other preparation should […]

Poor man’s directory tree replication

Bulk replication of directory trees.

Many ways to encrypt passwords

TMTOWTDI, even for password hashing.

Some notes on macvlan/macvtap

Just a summary of sparse information about poorly documented features.