Commands by AlecSchueler (2)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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check open ports without netstat or lsof

Simulate typing
This will output the characters at 10 per second.

Selecting a random file/folder of a folder
Also looks in subfolders

check open ports without netstat or lsof

Scan a document to PDF
Adjust the --resolution and --mode as required (if these options are available for your scanner). The size options (-x, -y, -imageheight, -imagewidth) are for US letter paper. For A4, I think the command would be: $scanimage -p --resolution 250 --mode Gray -x 210 -y 297 | pnmtops -imageheight 11.7 -imagewidth 8.3 | ps2pdf - output.pdf

Find the package that installed a command

Swap a file or dir with quick resotre
This lets you replace a file or directory and quickly revert if something goes wrong. For example, the current version of a website's files are in public_html. Put a new version of the site in public_html~ and execute the command. The names are swapped. If anything goes wrong, execute it again (up arrow or !!).

Short URLs with is.gd
No curl and no sed, just wget :)

Deleting / Ignoring lines from the top of a file
Output lines starting at line 2.

Convert diff output to HTML ins/del


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