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I took java to make the find command simpler and to state that it works for any language supported by cpp.
cpp is the C/C++ preprocessor (interprets macros, removes comments, inserts includes, resolves trigraphs). The -fpreprocessor option tells cpp to assume the input has already been preprocessed so it will only replace comment lines with blank lines.
The -L 1 option tells xargs to launch one process for each line, indeed cpp can only process one file at the time...
See external ip with w3m, simple and fast.
On a web site from Chile (spanish).
You can use -e to pass multiple patterns.
Use multiple patterns with grep -v. So you can print all lines in a file except those containing the multiple patterns you specify.
Sample command to obtain a list of geographic localization for established connections, extracted from netstat. Need geoiplookup command ( part of geoip package under CentOS)
uses the previous "chr" function and uses it to create the inverse function "ord" by brute force.
It's slow, It's inelegant, but it works.
I thought I needed ord/chr to do a cartesian cipher in shell script a whie ago, but eventualy I realized I could get fancy with tr and do the same thing...
not my cmd... found on the web
Place this in your .bash_profile and you can use it two different ways. If you issue 'h' on its own, then it acts like the history command. If you issue:
Then it will display all the history with the word 'cd'
miss a class at UTOSC2010? need a refresher? use this to curl down all the presentations from the UTOSC website. (http://2010.utosc.com) NOTE/WARNING this will dump them in the current directory and there are around 37 and some are big - tested on OSX10.6.1
If you want prepend/append text just wrap in echo:
echo Connected: `netstat -an|grep -ci "tcp.*established"`
No need for -l and the output can be sent directly into another function expecting directory names.
Searches for all .project files in current folder and below and uses "svn info" to get the last changed revision. The last sed joins every two lines.
Filters out all non-insert SQL operations (we couldn't filter out only lines starting with "INSERT" because inserts can span multiple lines), quotes table names with backticks, saves dump to a file and pipes it straight to mysql.
This transfers only data--it expects your schema is already in place. In Ruby on Rails, you can easily recreate the schema in MySQL with "rake db:schema:load RAILS_ENV=production".
All valid files are withheld so only failures show up. No output, all checks good.
I needed a way to search all files in a web directory that contained a certain string, and replace that string with another string. In the example, I am searching for "askapache" and replacing that string with "htaccess". I wanted this to happen as a cron job, and it was important that this happened as fast as possible while at the same time not hogging the CPU since the machine is a server.
So this script uses the nice command to run the sh shell with the command, which makes the whole thing run with priority 19, meaning it won't hog CPU processing. And the -P5 option to the xargs command means it will run 5 separate grep and sed processes simultaneously, so this is much much faster than running a single grep or sed. You may want to do -P0 which is unlimited if you aren't worried about too many processes or if you don't have to deal with process killers in the bg.
Also, the -m1 command to grep means stop grepping this file for matches after the first match, which also saves time.
Creates a consistent datapumpt export on an Oracle database with the current sequence number, while the system is running and changes happens on the database.