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Shell scripting allows you to automate tasks by writing a sequence of commands in a file and executing them. Here are some basic shell script commands:
1. Displaying File Contents
cat: Concatenates and displays file contents.
more: Pages through text one screen at a time.
less: Similar to more but allows backward movement.
head: Displays the first N lines of a file.
tail: Displays the last N lines of a file1.
Example:
cat filename.txt2. File and Directory Manipulation
mkdir: Creates a directory.
cp: Copies files or directories.
mv: Moves or renames files or directories.
rm: Removes files or directories.
touch: Creates or updates a file1.
Example:
mkdir new_directory3. Extract, Sort, and Filter Data
grep: Searches for specified text in a file.
sort: Sorts the contents of files.
wc: Counts characters, words, and lines in a file.
cut: Cuts out sections from each line of files1.
Example:
grep "search_term" filename.txt4. Basic Terminal Navigation
Basic Shell Commands in Linux: Complete List - GeeksforGeeks
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See results only from geeksforgeeks.orgShell Script Examples
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See more on educba.coma. Listing files (ls) – ‘ls’ command lists all the files in a directory. Syntax- Example- b. Creating & Viewing Files – ‘cat command can be usedto create the file or view the contents of the file. Syntax – Example – cat > test1.dat – will create a file and wait for the input to be written into the file. cat filname – will display the contents o…- Estimated Reading Time: 7 mins
- Published: Dec 5, 2019
Bash Commands: The Ultimate Cheat Sheet + Downloadable PDF
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With this cheat sheet, you now have a robust collection of essential Unix Bash commands that are crucial for efficient navigation, file management, process handling, and device management in Unix/Linux environments.
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May 10, 2024 · Search our Unix Commands cheat sheet to find the right cheat for the term you're looking for. Simply enter the term in the search bar and you'll receive the matching cheats available. With these commands, you can obtain …
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An A-Z Index of the Linux command line - SS64.com
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Search from file Size (in ~) find ~ -size +10M = search files bigger than.. (M,K,G) fg = put a background process to foreground ex: fg (process 1), f%2 (process 2) f%3, ... kill <PID> .. .. ..
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