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https://github.com/girish1729/75-linux-command-lines
75 Linux command lines
https://github.com/girish1729/75-linux-command-lines
command-line linux-shell multimedia tools youtube-dl
Last synced: 5 days ago
JSON representation
75 Linux command lines
- Host: GitHub
- URL: https://github.com/girish1729/75-linux-command-lines
- Owner: girish1729
- Created: 2022-10-15T00:54:56.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2022-10-17T23:54:43.000Z (about 2 years ago)
- Last Synced: 2024-05-01T13:54:03.514Z (7 months ago)
- Topics: command-line, linux-shell, multimedia, tools, youtube-dl
- Homepage:
- Size: 3.91 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# 50 interesting Linux command lines
1. Convert CRLF terminated files to just CR
```shell
$ dos2unix file.txt
```
2. Check if JSON is valid
```shell
$ json_verify < file.json
```
3. Same as above but prints out nicely.
```shell
$ jq < file.json
```
4. Get rid of duplicate spaces occuring together
```shell
$ tr -s ' ' < file.txt
```
5. Send mail from command line
```shell
$ mutt -s hi [email protected] < /tmp/mail.txt
```
6. Move in bulk based on patterns
```shell
$ mmv -v '*' '#1.jpg'
```
7. Use interactive file deletion DOS style
(midnight commander DOS style UI)
```shell
$ mc
```
8. Fancy list files (show dirs with /)
```shell
$ ls -F
```
9. Show a file with line numbers
```shell
$ cat -n file.txt
```
10. Use cut to split fields
```shell
$ echo 1:2:3 | cut -d: -f2
```
11. Edit file in place and do search and replace
```shell
$ perl -pi -e 's/old/new/' file.txt
```
12. Same as above but not in place
```shell
$ sed -e 's/old/new/' file.txt > new.txt
```
13. Spidermonkey (interactive js shell)
```shell
$ js
```
```shell
$ node
```
14. Simple video to audio conversion
```shell
$ ffmpeg -i file.mp4 song.mp3
```
15. Download youtube video to disk
```shell
$ youtube-dl https://youtu.be/XXXX
```
16. Same as above, faster
```shell
$ yt-dlp https://youtu.be/XXX
```
17. Show progress bar or ETA with pipeviewer
```shell
$ cat file.tgz | pv | tar zxpf
```
18. Play gif animation
```shell
$ mplayer file.gif
```
19. View image
```shell
$ qiv file.jpg
```
20. Same as above
```shell
$ qview file.webp
```
21. Same as above
```shell
$ xloadimage file.png
```
22. Same as above
```shell
$ display file.png
```
23. Nice PDF viewer
```shell
$ mupdf file.pdf
```
24. Fire up a web server using current dir
```shell
$ http-server
```
25. Fire up web server to interpret markdown files
```shell
$ grip
```
26. Do a simple file upload to FTP or HTTP
```shell
$ curl -T file.input ftp://remote/dir/A
```
27. Do a fast download breaking file into chunks and fetch
using multiple TCP connections
```shell
$ axel
```
28. Figure out common lines
```shell
$ comm file.txt file2.txt
```
29. Compare binary files
```shell
$ diff a.bin b.bin
```
30. Printout SHA256 fingerprint
```shell
$ openssl dgst sha256 < file.txt
```
31. Same as above.
```shell
sha256sum < file.txt
```
32. Always import fresh into git repo
```shell
$ find . -name .git | xargs rm -rf
```
33. Hear same song repeatedly
```shell
$ mplayer favsong.mp3 -loop 0
```
34. Watch video with vol boost, 0,9 for +,-
```shell
$ mplayer -softvol -softvol-max 1000 file.mp4
```
35. Listen to Internet radio on command line
```shell
$ mplayer
```
36. Resize image with ImageMagick
```shell
$ convert file.png -resize 500x500! small.png
```
37. Find out width and height
```shell
$ identify favicon.ico
```
38. Tell the length of media
```shell
$ mplayer -identify -frames 0
```
39. Nuke everthing in mp3 after 90 seconds
```shell
$ ffmpeg -i file.mp3 -to 90 out.mp3
```
40. Get rid of first 30 seconds.
```shell
$ ffmpeg -i file.mp3 -ss 30 out.mp3
```
41. Convert a postscript file to PDF
```shell
$ ps2pdf14 file.ps
```
42. Create webp from png or jpg
```shell
$ cwebp file.png -o file.webp
```
43. Change image format
```shell
$ convert file.jpg file.png
```
44. Copy file.txt to paste buffer
```shell
$ cat file.txt| xsel
```
45. Take screenshot from command line
```shell
$ import f.png
```
46. Scour entire file system for files
```shell
$ locate file
```
47. Look for pattern recursively and ignore case
```shell
$ grep -ir pat dir/
```
48. Get rid of newline whilst printing
```shell
$ echo -n text
```
49. Batch top output
```shell
top -b
```
50. Show speed of download/upload
```shell
$ ifstat
```
51. Find directories and nuke them
```shell
$ find . -name mango -type d | xargs rm -rf
```
52. Prints random quote or cookie
```shell
$ fortune
```
53. Compress files using zstd
```shell
$ zstd file.bin
```
54. Decompress using zstd
```shell
$ unzstd compressed.zstd
```
55. Record screencast video
```shell
$ peek
```
56. Download youtube video in mp4
```shell
$ yt-dlp -f mp4 https://youtu.be/XXXXX
```
57. FTP client with superpowers
```shell
$ lftp
```
58. Show statistics and counters
```shell
$ conky
```
59. Show bandwidth usage
```shell
$ ifstat -b
```
60. Start a TCP server at port 1234
```shell
$ nc -l -p 1234
```
61. Connect to server using netcat
```shell
$ nc 127.0.0.1 1234
```
62. Generate strong password
```shell
$ pwgen
```
63. Generate lookalike domains
```shell
$ dnstwist google.com
```
64. anagram generator
```shell
$ an mango
```
65. Profile execution of a program
```shell
$ time
```
66. Save changes to disk
```shell
$ sync
```
67. Figure out USB or SSD or HDD performance
```shell
$ iostat
```
68. Find out bandwidth between two point
```shell
$ bing host1 host2
```
69. Scan for machines in local network
```shell
$ fping -g 192.168.1.0/24
```
70. Colored less
```shell
$ most
```
71. JSON power tool
```shell
$ jq
```
72. YAML power tool
```shell
$ yq
```
73. Search for man pages
```shell
$ apropos string
```
74. Indent javascript
```shell
$ js-beautify file.js
```
75. Capture screenshot
```shell
$ sleep 3; import foo.png
```
## Download this cheatsheet PDF
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