Reconstruct a malformed authorizated_keys for ssh

when someone mail you his ssh public key, and the lines are broken with '\n', you can reconstruct a new file with one key by line with this command.

Sample Output

root@localhost:~/Desktop$ cat authorized_keys_with_broken_lines 
ssh-dss AAAA00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222
333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333
4444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444
 root@localhost

root@localhost:~/Desktop$ cat authorized_keys_with_broken_lines | sed 's,^ssh,%ssh,' | tr '\n' '\0'  | tr '%' '\n' | sed '1d' | sed "/^$/d"   
ssh-dss AAAA000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222223333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333334444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444 root@localhost

By: pepin

2010-02-19 08:32:35

cat sed tr

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