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Search: Posts Made By: KenJackson
9,390
Posted By KenJackson
If the server is at a known, fixed IP address,...
If the server is at a known, fixed IP address, you can assign it two names in /etc/hosts like this. Then either name will connect you to the same server. 192.168.1.21 serverA serverB
Then make a...
Forum: What is on Your Mind? 08-14-2011
1,663
Posted By KenJackson
In defense of the command line
Ever since the 80's, I've been appalled at how many people actually think the click-and-wait interface (GUI) is superior to the command line. I suspect that can be explained by most of them never...
1,523
Posted By KenJackson
echo user1 user2 | xargs -n1 id
echo user1 user2 | xargs -n1 id
Forum: What is on Your Mind? 06-17-2011
2,250
Posted By KenJackson
You have a smiley there, and you're almost...
You have a smiley there, and you're almost quoting one of those articles, but I hope you're not saying that tongue in cheek. There's some wisdom in your words. If bitcoins had no value, why would...
Forum: What is on Your Mind? 06-09-2011
2,250
Posted By KenJackson
Bitcoin
I just learned about a new "peer-to-peer currency" named Bitcoin (http://www.weusecoins.com/). It also has a wiki (https://en.bitcoin.it/wiki/Main_Page).

It promises to be a currency that can be...
2,288
Posted By KenJackson
When I tried this, I got the same results as you....
When I tried this, I got the same results as you.
(I don't need -X or -l because of my configuration.)
for x in $(seq 1 10); do ssh <server> xeyes & done
But this works, at least for me.
for x in...
43,514
Posted By KenJackson
I haven't used the MKS toolkit, but here's an...
I haven't used the MKS toolkit, but here's an interesting test that might shed light:
#!/bin/sh
DIR=/tmp/test
rm -rf $DIR; mkdir -p $DIR; cd $DIR || exit 1
touch "ab cd" "ef gh" "ij kl"
...
1,848
Posted By KenJackson
I haven't tried this, but I think you could add...
I haven't tried this, but I think you could add -nc (or --no-clobber) to prevent it from downloading a file if one already exists, and then truncate rather than delete.

You'll end up with a bunch...
1,117
Posted By KenJackson
It looks like you're just using $@.$$$$ very...
It looks like you're just using $@.$$$$ very briefly as a temporary file, whose name doesn't matter.
Why not use a different name that doesn't use dollar signs?

$@.TEMP

Or even the same...
3,846
Posted By KenJackson
This deletes all of the spaces, if any, at the...
This deletes all of the spaces, if any, at the beginning of every line:

sed -e 's/^ *//'

This portion of the same command deletes all the spaces, if any, at the end of every line:

-e 's/...
2,024
Posted By KenJackson
It could also be /etc/profile or even more...
It could also be /etc/profile or even more likely, a file in /etc/profile.d/.

There's a fair chance that the oracle package installed a file, /etc/profile.d/oracle.sh. If it's causing your...
16,121
Posted By KenJackson
I think you're missing a dot. ...
I think you're missing a dot.
netId1=${host1#$SUBNET.}
netId2=${host2#$SUBNET.}
3,360
Posted By KenJackson
I've barely touched sqlite, but if it either -...
I've barely touched sqlite, but if it either
- succeeds and returns 0 or
- makes no change at all and returns an error code
(as I would hope it would), you might try something like this.
while...
1,137
Posted By KenJackson
Unless the target filename has a real dot there.
Unless the target filename has a real dot there.
15,140
Posted By KenJackson
Wow! That's kind of a mess. Those curly brace...
Wow! That's kind of a mess. Those curly brace characters {} don't belong there.

But I do see /usr/bin, and the type command found the executables, after all.

Oh wait! Rereading your original...
2,464
Posted By KenJackson
I can think of a 2-step procedure that should...
I can think of a 2-step procedure that should work, if I understand:
n=1
for f in $(ls -tr obj*x*.bin); do
mv -v "$f" "TEMP$n-${f#obj*-}"
((n++))
done
for f in TEMP*.bin; do
mv -v...
3,322
Posted By KenJackson
You have to decide what format you want for the...
You have to decide what format you want for the timestamp and/or datestamp.

%Y is the 4-digit date,
%H is the (24-hour) hour, etc.

You can see all the format options by executing man date and...
1,489
Posted By KenJackson
Here's my script for printing the local IP. ...
Here's my script for printing the local IP.

I prefer to get the actual address from the network device instead of the address it's supposed to be in /etc/hosts. But some of my machines have the...
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