3,207 reputation
11336
bio website datageek.info
location China
age 26
visits member for 4 years, 2 months
seen Aug 17 at 4:11

Simplicity is the ultimate sophistication. — Leonardo Da Vinci

less is more

  • The basic problem is actually very complicated.
  • It's amazing that computers only use 0s and 1s.

handy tools

# download bigfile
$ aria2c -c -k1M -{x,j,s}16 --checksum=md5=dccff28314d9ae4ed262cfc6f35e5153 http://mirrors.zju.edu.cn/ubuntu-releases/14.04/ubuntu-14.04-desktop-amd64.iso

# backup txt files
$ rsync -avzm --include '*/' --include '*.txt' --exclude '*' source/ remote:target/

# transfer big file
$ rsync -hP remote:file .

# convert json to csv
$ jq -r '[.field1,.field2,.field3]|@csv' input.json > output.csv

# convert socks5 to http
$ delegate -P8080 SERVER=http SOCKS=1.2.3.4:1080 ADMIN=noreply@datageek.info

# zero-padding file names
$ rename 's/^\d+/sprintf("%02d", $&)/e' [0-9]*

# concat video parts
$ printf "file '%s'\n" part*.mp4 | ffmpeg -f concat -i - -c copy all.mp4

124
× 35
28
× 2
57
× 23
27
50
× 8
26
× 8
46
× 3
22
× 14
46
× 3
8
× 2
Stack Overflow 42,415 rep 672120
Super User 3,207 rep 11336
Unix & Linux 421 rep 39
Ask Ubuntu 328 rep 2513
Programming Puzzles & Code Golf 121 rep 4

60 Votes Cast

all time   by type   month   week  
59 up 6 question 1 1
1 down 54 answer