Check These Out
Query Wikipedia by issuing a DNS query for a TXT record. The TXT record will also include a short URL to the complete corresponding Wikipedia entry.You can also write a little shell script like:
$ $ cat wikisole.sh
$ #!/bin/sh
$ dig +short txt ${1}.wp.dg.cx
and run it like
$ ./wikisole.sh unix
were your first option ($1) will be used as search term.
Each shell function has its own summary line, as a comment. If there are multiple shell functions with the same name, the function with the highest number of votes is put into the file.
Note: added 'grep -v' to the end of the pipeline, to eliminate extraneous lines containing only '--'. Thanks to matthewbauer for pointing this out.
This is probably overkill, but I have some issues when the directories have spaces in their names.
The
$ find . -type d -print0 | while read -d $'\0' dir; do xxx; done
loops over all the subdirectories in this place, ignoring the white spaces (to some extend).
$ cd "$dir"; echo " process $dir"; cd -;
goes to the directory and back. It also prints some info to check the progress.
$ find . -maxdepth 1 -name "*.ogg.mp3" -exec rename 's/.ogg.mp3/.mp3/' {} \;
renames the file within the current directory.
The whole should work with directories and file names that include white spaces.
Intended for dynamic ip OpenDNS users, this command will update your OpenDNS network IP.
For getting your IP, you can use one of the many one-liners here on commandlinefu.
Example:
I use this in a script which is run by kppp after it has successfully connected to my ISP:
---
#!/bin/bash
IP="`curl -s http://checkip.dyndns.org/ | grep -o '[[:digit:].]\+'`"
PW="hex-obfuscated-pw-here"
if [ "$IP" == "" ] ; then echo 'Not online.' ; exit 1
else
wget -q --user=topsecret --password="`echo $PW | xxd -ps -r`" 'https://updates.opendns.com/nic/update?hostname=myhostname&myip='"$IP" -O -
/etc/init.d/ntp-client restart &
fi
---
PS: DynDNS should use a similar method, if you know the URL, please post a comment. (Something with members.dyndns.org, if I recall correctly)
This version uses read instead of eval.
usage examples
ls largedir |rd
lynx -dump largewebsite.com |rd
rd < largelogfile
Uses logger in a while loop to log memory statistics frequently into the local syslog server.
Say you're started "xzcat bigdata.xz | complicated-processing-program >summary" an hour ago, and you of course forgot to enable progress output (you could've just put "awk 'NR%1000==0{print NR>"/dev/stderr"}{print}'" in the pipeline but it's too late for that now). But you really want some idea of how far along your program is. Then you can run the above command to see how many % along xzcat is in reading the file.
Note that this is for the GNU/Linux version of lsof; the one found on e.g. Darwin has slightly different output so the awk part may need some tweaks.
