Differences

This shows you the differences between two versions of the page.

--- labs:unix_intermediate [2024/09/05 17:13] – [Finding Content: grep] admin
+++ labs:unix_intermediate [2024/09/05 17:21] (current) – [Intermediate Unix Commands] admin
@@ Line 1: / Line 1: @@
 ====== Intermediate Unix Commands ======
+This page contains just a teaser of some helpful commands.  You should use ''man'' or search for more information about the commands, e.g., what arguments and flags you can use to customize the command.
 ===== Permissions =====
@@ Line 20: / Line 21: @@
   grep Sara names.txt
 ===== Finding Files: find =====
+You can find files with various characteristics using the ''find'' command.  It will look in the directory specified and all of its subdirectories.  You can then apply a command to those found files.
+Examples:
+Find all of the files with the .txt extension in the current directory and its subdirectories
+  find . -name "*.txt"
+Find all of the files in my home directory (and its subdirectories) that have no data in them (have 0 Bytes of data)
+  find ~ -size 0
+View all of the information (e.g., last modified date) of all of the files in my home directory (and its subdirectories) that have no data in them
+  find ~ -size 0 -exec ls -l {} \;
 ===== Finding Differences Between Files: diff =====
 ===== Beginning of Files: head =====
+Usage:
+  head <filename>
+shows the first few lines of a file.  You can use a flag to change how many lines are displayed
 ===== End of Files: tail =====