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the-art-of-command-line
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More minor updates.

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Joshua Levy 2015-05-31 19:42:13 -07:00
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@ -128,9 +128,9 @@ Scope:
- For JSON, use `jq`.
- For Amazon S3, [`s3cmd`](https://github.com/s3tools/s3cmd) is convenient (albeit immature, with occasional misfeatures) and [`s4cmd`](https://github.com/bloomreach/s4cmd) is faster. Amazon's [`aws`](https://github.com/aws/aws-cli) is essential for other AWS-related tasks.
- For Amazon S3, [`s3cmd`](https://github.com/s3tools/s3cmd) is convenient and [`s4cmd`](https://github.com/bloomreach/s4cmd) is faster. Amazon's [`aws`](https://github.com/aws/aws-cli) is essential for other AWS-related tasks.
- Know about `sort` and `uniq` (including uniq's `-u` and `-d` options -- see one-liners below).
- Know about `sort` and `uniq`, including uniq's `-u` and `-d` options -- see one-liners below.
- Know about `cut`, `paste`, and `join` to manipulate text files. Many people use `cut` but forget about `join`.
@ -145,7 +145,8 @@ Scope:
- To rename many files at once according to a pattern, use `rename`. For complex renames, [`repren`](https://github.com/jlevy/repren) may help.
```
rename 's/\.bak$//' *.bak
rename 's/\.bak$//' *.bak # Recover backup files.
repren --full --preserve-case --from foo --to bar . # Full rename of filenames, directories, and contents.
```
- Use `shuf` to shuffle or select random lines from a file.
@ -170,7 +171,7 @@ Scope:
## System debugging
- For web debugging, `curl` and `curl -I` are handy, or their wget equivalents, or the more modern [`httpie`](https://github.com/jakubroztocil/httpie).
- For web debugging, `curl` and `curl -I` are handy, or their `wget` equivalents, or the more modern [`httpie`](https://github.com/jakubroztocil/httpie).
- To know disk/cpu/network status, use `iostat`, `netstat`, `top` (or the better `htop`), and (especially) `dstat`. Good for getting a quick idea of what's happening on a system.