http://www.linuxrecipes.com Practical tips and tricks for Linux Sun, 18 Sep 2011 14:30:01 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 http://feedproxy.google.com/~r/linuxrecipes/feed/~3/O7gusQKseHw/ http://www.linuxrecipes.com/2011/09/16/bash-redirection-from-file-to-command/#comments Fri, 16 Sep 2011 18:09:44 +0000 Mohammed Azirar http://www.linuxrecipes.com/?p=61 We can redirect the contents of one file descriptor to another. By using redirection, we can read data from a file as stdin as follows: Source: Linux Shell Scripting Cookbook<img src="http://feeds.feedburner.com/~r/linuxrecipes/feed/~4/O7gusQKseHw" height="1" width="1"/> http://www.linuxrecipes.com/2011/09/16/bash-redirection-from-file-to-command/feed/ 0 http://www.linuxrecipes.com/2011/09/16/bash-redirection-from-file-to-command/ http://feedproxy.google.com/~r/linuxrecipes/feed/~3/5eB2-CV8MPU/ http://www.linuxrecipes.com/2011/09/16/bash-check-for-super-user/#comments Fri, 16 Sep 2011 17:33:35 +0000 Mohammed Azirar http://www.linuxrecipes.com/?p=47 UID is an important environment variable that can be used to check whether the current script has been run as root user or regular user. For example: The UID for the root user is 0. Source: Linux Shell Scripting Cookbook<img src="http://feeds.feedburner.com/~r/linuxrecipes/feed/~4/5eB2-CV8MPU" height="1" width="1"/> http://www.linuxrecipes.com/2011/09/16/bash-check-for-super-user/feed/ 0 http://www.linuxrecipes.com/2011/09/16/bash-check-for-super-user/ http://feedproxy.google.com/~r/linuxrecipes/feed/~3/fxs0KNGYxDo/ http://www.linuxrecipes.com/2011/09/16/bash-identifying-the-current-shell/#comments Fri, 16 Sep 2011 16:20:26 +0000 Mohammed Azirar http://www.linuxrecipes.com/?p=37 Display the currently used shell as follows: Or, you can also use: For example: Source: Linux Shell Scripting Cookbook<img src="http://feeds.feedburner.com/~r/linuxrecipes/feed/~4/fxs0KNGYxDo" height="1" width="1"/> http://www.linuxrecipes.com/2011/09/16/bash-identifying-the-current-shell/feed/ 0 http://www.linuxrecipes.com/2011/09/16/bash-identifying-the-current-shell/ http://feedproxy.google.com/~r/linuxrecipes/feed/~3/n0P2bKJ78lk/ http://www.linuxrecipes.com/2011/09/16/bash-finding-length-of-string/#comments Fri, 16 Sep 2011 11:46:27 +0000 Mohammed Azirar http://www.linuxrecipes.com/?p=17 Get the length of a variable value as follows: For example: length is the number of characters in the string. Source: Linux Shell Scripting Cookbook<img src="http://feeds.feedburner.com/~r/linuxrecipes/feed/~4/n0P2bKJ78lk" height="1" width="1"/> http://www.linuxrecipes.com/2011/09/16/bash-finding-length-of-string/feed/ 0 http://www.linuxrecipes.com/2011/09/16/bash-finding-length-of-string/