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| 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 | ||
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| ====== Intermediate Unix Commands ====== | ====== Intermediate Unix Commands ====== | ||
| + | This page contains just a teaser of some helpful commands. | ||
| ===== Permissions ===== | ===== Permissions ===== | ||
| Line 18: | Line 19: | ||
| Example: I want to find all the names that start with " | Example: I want to find all the names that start with " | ||
| - | > grep Sara names.txt | + | |
| ===== Finding Files: find ===== | ===== Finding Files: find ===== | ||
| + | |||
| + | You can find files with various characteristics using the '' | ||
| + | |||
| + | Examples: | ||
| + | |||
| + | Find all of the files with the .txt extension in the current directory and its subdirectories | ||
| + | |||
| + | find . -name " | ||
| + | | ||
| + | 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 ===== | ===== Finding Differences Between Files: diff ===== | ||
| ===== Beginning of Files: head ===== | ===== Beginning of Files: head ===== | ||
| + | Usage: | ||
| + | |||
| + | head < | ||
| + | |||
| + | shows the first few lines of a file. You can use a flag to change how many lines are displayed | ||
| ===== End of Files: tail ===== | ===== End of Files: tail ===== | ||
