Mail a file as an attachment from the UNIX prompt
1 uuencode file.txt file.txt | mail email@address.com
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About this user
Peter Cooperx http://www.petercooper.co.uk/
Easy file encryption and decryption from the shell
Works on OS X, Linux, anywhere with OpenSSL installed:
To encrypt a file:
To decrypt the file:
Do not specify the same file as input and output on encryption.. I have noticed weird effects on OS X (it eats the file). Remove the -in * stuff if you want to pipe data into it (e.g. a tarred folder). Omit the -out * stuff if you want it to pipe data out on STDOUT.
To encrypt a file:
1 openssl des3 -salt -in infile.txt -out encryptedfile.txt
To decrypt the file:
1 openssl des3 -d -salt -in encryptedfile.txt -out normalfile.txt
Do not specify the same file as input and output on encryption.. I have noticed weird effects on OS X (it eats the file). Remove the -in * stuff if you want to pipe data into it (e.g. a tarred folder). Omit the -out * stuff if you want it to pipe data out on STDOUT.
Change file extensions with bash shell
To change all .htm files in a folder to .html files:
1 for f in *.htm; do mv $f `basename $f .htm`.html; done;
bash shell directory shortcuts
Go back to your previous directory:
Go to a new directory and push the current one onto a stack:
Pop a directory from the stack and go to it:
1 cd -
Go to a new directory and push the current one onto a stack:
1 pushd /newdirectory
Pop a directory from the stack and go to it:
1 popd
