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Commands by jasonjgw from sorted by
Terminal - Commands by jasonjgw - 13 results
~ ctrl-z
2010-11-21 07:43:40
User: jasonjgw
4

This must be typed before any other characters have been entered on the line. Use fg, as usual, to resume the ssh session.

fetchmail -p etrn --fetchdomains yourdomain.example.org secondary-server.example.org
2010-11-20 23:38:09
User: jasonjgw
Functions: fetchmail
0

This uses fetchmail to issue an etrn command that causes the MTA on the secondary mail server to process the queue for the specified domain.

You can also just use telnet or nc to connect to port 25 of the server and then:

etrn yourdomain.example.org

250 2.0.0 Queuing for node yourdomain.example.org started

find -L -type l
2010-11-20 07:59:58
User: jasonjgw
Functions: find
4

This is best run as root to avoid permission denials that can produce false positives.

Obviously you can specify a directory in the usual way:

find -L dirname -type l

I can't remember where I read about this or who deserves the credit for it. The find(1) manual page hints strongly toward it, however.

for f in * ; do [ -f $f ] && openssl enc -aes-256-cbc -salt -in $f -out $f.enc -pass file:/tmp/password-file ; done
2010-11-20 03:29:16
User: jasonjgw
2

The password is stored in the password file, which obviously must be kept secure, encrypted later with gpg, deleted, or whatever you prefer.

To decrypt:

openssl enc -d -aes-256-cbc -salt -in filename.enc -out filename -pass file:/path/to/password-file

Alternative ciphers can be used, of course.

exportfs -o fsid=0,rw :/home/jason
2010-11-18 10:02:52
User: jasonjgw
2

This exports a directory to the world in read/write mode. It is useful for

quick, temporary NFS exports. Consider restricting the clients to a subnet or

to specific hosts for security reasons (the client can be specified

before the colon).

On the client:

mount -t nfs4 hostname:/ /mountpoint

To terminate all of the exports (after unmounting on the client):

exportfs -u -a

Leave out the fsid=0 option if you don't want NFSv4.

This works under recent versions of Linux.

tar cfJ tarfile.tar.xz pathnames
2010-11-18 05:34:17
User: jasonjgw
Functions: tar
-1

The J option is a recent addition to GNU tar. The xz compression utility is required as well.

ip addr change 2001:db8:1:2::ab dev eth0 preferred_lft 0
2010-11-18 05:05:15
User: jasonjgw
1

If two or more IPv6 addresses are assigned to an interface, apply this command to all but the address that you want to use as the source address of outbound packets.

This is Linux-specific and requires the iproute package, or equivalent for your distribution.

for f in *.doc ; do wvHtml $f ${f%.doc}.html ; done
2010-11-18 00:20:54
User: jasonjgw
0

This requires wvWare, which under Debian is in the wv package. Alternative converters can be used, e.g., jodconverter, which uses OO.O instead (no X server need be running.)

mv -i something.conf{,~} && sed "/regexp/s/^/#/" < something.conf~ > something.conf
tar cfz backup-$(date --iso).tar.gz somedirs
detex document.tex|wc -w