Commands by plasticboy

Commands by plasticboy (4)

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Quickly find files and folders in the current directory

These should be a little faster since they don't have to spawn grep.
This is sample output - yours may be different.
-1

ff() { find -maxdepth 3 -type f -iname "$1"; }; fd() { find -maxdepth 4 -type d -iname "$1"; }

plasticboy · 2012-08-15 15:04:48 4
get colorful side-by-side diffs of files in svn with vim

This will diff your local version of the file with the latest version in svn. I put this in a shell function like so: svd() { vimdiff <(svn cat "$1") "$1"; }
This is sample output - yours may be different.
2

vimdiff <(svn cat "$1") "$1"

plasticboy · 2009-09-04 18:41:40 4
Output system statistics every 5 seconds with timestamp

See man vmstat for information about the statistics. This does the same thing without the timestamp: vmstat 5 Show Sample Output
This is sample output - yours may be different.
```
2009-03-26_15:13:49 0  0    536  27724   4236 699064    0    0     0     0 1306   413  2  1 98  0
2009-03-26_15:13:54 0  0    536  27212   4244 699576    0    0     0     0 1182   266  1  0 99  0
2009-03-26_15:13:59 0  0    536  26764   4252 699828    0    0     0     0 1229   330  1  0 98  0
2009-03-26_15:14:04 0  0    536  26508   4260 700080    0    0     0     0 1307   465  2  1 98  0
```
3

while [ 1 ]; do echo -n "`date +%F_%T`" ; vmstat 1 2 | tail -1 ; sleep 4; done

plasticboy · 2009-03-26 19:16:55 14
Tail a log file with long lines truncated

This truncates any lines longer than 80 characters. Also useful for looking at different parts of the line, e.g. cut -b 50-100 shows columns 50 through 100.
This is sample output - yours may be different.
3

tail -f logfile.log | cut -b 1-80

plasticboy · 2009-03-26 18:41:57 11

What's this?

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Monitor cpu in realtime.

To have only unique lines in a file

tree by modify time with newest file at bottom

Go look at sample output first This is kind of like the ls command but displays by modify time with size, date and color. The newest files at the bottom of the screen (reverse using tac)

get a fresh commandlinefu-item each day as motd

Commandline-fu often has little tricks that I always forget. By adding this to the root-cron (sudo crontab -e) I lean a new trick every day.

Find the package that installed a command

SoX recording audio and trimming silence

Records audio from your mic in FLAC (Free Lossless Audio Codec) format, starts only after it detects at least 0.1 seconds of noise and stops after 1 second of silence. You can adjust the percent values (sensitivity) to best fit your microphone and voice (0.1% if you have a great quality mic, higher if you don't, 0% does not trim anything). Useful for speech recognition in conjunction with my previous command titled 'Google voice recognition "API"' (http://www.commandlinefu.com/commands/view/8043/google-voice-recognition-api).

Bitcoin Brainwallet Base58 Encoder

A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Private Key Base58 Encoder is the third of three functions needed to calculate a bitcoin PRIVATE key from your "brainwallet" passphrase. This base58 encoder uses the obase parameter of the amazing bc utility to convert from ASCII-hex to base58. Tech note: bc inserts line continuation backslashes, but the "read s" command automatically strips them out. I hope that one day base58 will, like base64, be added to the amazing openssl utility.

Remove \r (carriage return) in a file

lazy SQL QUERYING

This is regarding the command 8263 using an alias to fill in command line options for psql. You can actually just type 'psql'. In order for that to work, you want to set environment variables PGDATABASE, PGHOST, PGUSER, and (except you're using the default) PGPORT. Also, you can add a line "host:port:dbname:user:password" (asterisk ok in some columns) to your ~/.pgpass file. Finally, if you don't like the aligned columns, you can add the line "\pset format unaligned" to your ~/.psqlrc file.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

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