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--- shell [2010/05/22 14:19] – external edit 127.0.0.1
+++ shell [2010/06/11 12:17] (current) – removed 172.26.14.218
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-====== Shell tips ======
-===== Environment Modules =====
-The [[http://modules.sourceforge.org|environment modules]] package can be used to dynamically configure your shell environment for different software packages.  If you have two versions of the [[r|R statistics]] package you could easily switch between the two using the ''module'' command:
-<code>$ type -a R
-R is /usr/bin/R
-$ module load R/2.11.0
-$ type -a R
-R is /paracel/paracel/biosoft/R/2.11.0/bin/R
-R is /usr/bin/R</code>
-===== Searching for a String in Multiple Files =====
-Ever need to search through all your files for a certain word or phrase? You probably know about the grep command, but did you know it's recursive?
-Here's an example. In this case we're searching for the word "modules":
-<code>grep -r "modules" .</code>
-By using the "-r" switch, we're telling grep to scan files in the current directory and all sub-directories. It will return a list of files the string was found in, and a copy of the line it was found on.
-If you'd rather just get the file names and skip the rest of the output, use the "-l" switch, like so:
-<code>grep -lr "modules" .</code>
-Here's another tip: grep also supports regular expressions, so matching against a wildcard pattern is easy:
-<code>grep -lr "mod.*" .</code>
-That command will print a list of files containing any word starting with "mod".
-You can also use grep to search for multiple words:
-<code>grep -r "drupal\|joomla\|wordpress" .</code>
-And, of course, grep supports file name wildcards in the standard unix fashion. In this example, grep will search only file names starting with "log":
-<code>grep -lr "mod.*" ./log*</code>
-===Bluetooth===
-sudo apt-get install obextool gnome-vfs-obexftp blueman
-=== Statically linking executable ===
-<code> ./configure LDFLAGS=-static </code>
-<code> make LDFLAGS=-all-static </code>