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sed Command Guide: Utilizing the Stream Editor
`sed` (stream editor) is a powerful non-interactive text processing tool used for editing text streams (inputs delivered through files or pipes). It allows you to efficiently search, replace, delete, or insert text without opening files, making it essential for automated text transformations in shell scripts. Through this guide, you will learn the basic usage of the `sed` command and advanced features using regular expressions.
Guide to the sort Command: Sorting Text Files
`sort` command is used to sort lines of text files or data received from standard input. It can sort data in various orders such as alphabetical, numerical, or reverse order, making it very useful for log file analysis, data preparation, and report generation. Use this guide to learn the basic usage of the `sort` command and its various sorting options.
strings: Extracting Strings from Binary Files
The `strings` command is a tool used to extract human-readable text strings from binary files (executables, libraries, etc.). It is useful for debugging programs, analyzing malware, or quickly checking the content of unknown files.
Guide to the tail Command: Viewing the End of a File and Real-Time Monitoring
`tail` command is used in Linux and Unix-like operating systems to output the last part of a text file (defaulting to 10 lines). It is an essential tool for monitoring log files in real-time or quickly checking recent changes to a file. In this guide, learn the various usages and useful options of the `tail` command.
Complete Guide to the tee Command: Write to Standard Output and Files Simultaneously
The `tee` command acts like a 'T'-shaped pipe, sending data from standard input to standard output (screen) while simultaneously saving it to one or more files. It is extremely useful in complex pipelines for real-time monitoring of intermediate results and logging them to a file.
tr: Character Translation and Deletion Filter
The `tr` command is a filter command used to translate or delete characters from text received via standard input (stdin). It is particularly useful when used with pipes (|) to process the output of other commands.
uniq Command Guide: Remove and Identify Duplicate Lines
The `uniq` command is used to remove consecutively duplicated lines from text files or data passed via pipes, or to count the number of duplicated lines. Its true value is realized when used with the `sort` command, making it an essential tool for data cleaning and analysis.
wc Command Guide: Counting Lines, Words, and Bytes in Files
`wc` command, short for 'word count', counts and displays the number of lines, words, and bytes (characters) in text files or standard input. It's useful for quickly getting simple statistics about file size or content, and is frequently used in combination with other commands via pipes (`|`) to count specific data.
xxd: Hex Dump and Reverse Conversion Tool
The `xxd` command is a tool used to dump (output) files in hexadecimal format or, conversely, to reverse convert a hexadecimal dump back into the original binary file. It is more flexible than `hexdump` and particularly useful when editing the content of a binary file and then converting it back to its original form.