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How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...all. Eg, instead of changing flags = foo | bar to flags = foo | bar | debug_thingy, you'd have to make sure you add a completely new line like flags |= debug_thingy after.
– Kat
May 25 '18 at 20:27
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Exit codes in Python
...re.
Example:
import sys, os
try:
config()
except:
sys.exit(os.EX_CONFIG)
try:
do_stuff()
except:
sys.exit(os.EX_SOFTWARE)
sys.exit(os.EX_OK) # code 0, all ok
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In Vim, is there a way to paste text in the search line?
...uts (e.g, a calculator, current filename, clipboard contents). Type :help c_<C-R> to see the full list.
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Adding rounded corner and drop shadow to UICollectionViewCell
... layer.cornerRadius = radius
}
}
You can call it in collectionView(_:cellForItemAt:) of the datasource once you dequeue your cell.
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invalid byte sequence for encoding “UTF8”
... the iconv utility to change encoding of the input data.
iconv -f original_charset -t utf-8 originalfile > newfile
You can change psql (the client) encoding following the instructions on Character Set Support. On that page, search for the phrase "To enable automatic character set conversion".
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How to split a large text file into smaller files with equal number of lines?
...file (still splits on line breaks):
split -C 20m --numeric-suffixes input_filename output_prefix
creates files like output_prefix01 output_prefix02 output_prefix03 ... each of max size 20 megabytes.
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How to rollback a specific migration?
I have the following migration file db\migrate\20100905201547_create_blocks.rb
14 Answers
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Change Tomcat Server's timeout in Eclipse
...setting of Tomcat port, however I saw correct place for it on your screen ^_^. Thanks
– Fisk
Dec 26 '16 at 15:08
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Relative frequencies / proportions with dplyr
...
Try this:
mtcars %>%
group_by(am, gear) %>%
summarise(n = n()) %>%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vigne...
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... 23.5GB / 24GB 1333MHz == 6 x 4GB, 12 x empty
Disk-Control: megaraid_sas0: Dell/LSILogic PERC 6/i, Package 6.2.0-0013, FW 1.22.02-0612,
Network: eth0 (bnx2):Broadcom NetXtreme II BCM5709 Gigabit Ethernet,1000Mb/s
OS: RHEL Server 5.4 (Tikanga), Linux 2.6.18-164.el5 x86...