There are many ways to do it on *nix. But on Windows, it's a bit convoluted.

I use the above command expression in a batch file to check if a process is running already before running it again. I use this is a batch file I created to switch between 2 different versions of PowerBuilder (PB). I wanted to make sure, one version of PB is not running, before letting the user to switch, hence this check. (replace notepad.exe with PB125.exe above).

/nh means no header, /fi means filter. We are filtering for Notepad.exe only above. Then, we take that and look for Notepad.exe using a FindStr command. It will still work, even if we don't have those 2 flags, but it makes finding the right program quicker.

&& and || are part of the conditional expressions see here: http://www.robvanderwoude.com/condexec.php. We use these to print for the IF...ELSE condition.

>nul is the equivalent of Unix /dev/null

Rest is self explanatory, I think.

This command allows to follow up a trace on SDP (CS5.2), at the same time as the trace records are stored in the file with "raw" format.

Trace files in native format are useful to filter the records before to translation from '|' to '\n'.

Example:

Rainbow Stream is a smart and nice Twitter client on terminal.

Almost everything you can do with a GUI application can be done, even viewing an image.

- Tab-autocomplete, history browsing

- Beautiful built-in themes and custom configuration support

- Tweet's images directly on your terminal.

https://twitter.com/westonruter/status/501855721172922369

This command makes a small graph with the histogram of size blocks (5MB in this example), not individual files. Fine tune the 4+5*int($1/5) block for your own size jumps : jump-1+jump*($1/jump)

Also in the hist=hist-5 part, tune for bigger or smaller graphs

Short and concise output appropiate for scripts.

I always wanted to be able to copy formatted HTML, like from emails, on trello cards or READMEs... but the formatting is always wrong... But from this two links:

* https://jeremywsherman.com/blog/2012/02/08/pasting-html-into-markdown/

* http://stackoverflow.com/questions/3261379/getting-html-source-or-rich-text-from-the-x-clipboard

For instance, to to copy an formatted email to a trello card, just:

1. Select the email body

2. run: xclip -selection clipboard -o -t text/html | pandoc -f html -t markdown_github - | xclip -i -t text/plain

3. Paste in your trello card

4. Profit!

8-)

Calculate the date of Sysadmin day (last Friday of July) of any given year

Calculate Sysadmin day of any given year using 2 `date`. Code based on http://stackoverflow.com/a/5656859/196133

Calculate the date of Sysadmin day (last Friday of July) of any given year

Find the failed lines, reverse the output because I only see 3 indicators after the IP address, i.e. port, port#, ssh2 (in my file), cut to the 4th field (yes, you could awk '{print $4}'), reverse the output back to normal and then sort -u (for uniq, or sort | uniq).

echo 1 > /proc/sys/sunrpc/nfs_debug && tail -f /var/log/messages

to debug NFS issues.

this function will give you a status webpage code using curl.

get master info:

head -n 40 /home/db_bak.sql |awk '$0~/MASTER_LOG_FILE/

slave server:

change master ??.

start slave