Bioinformatics one-line Day 18
1/

delete the blank lines
```
sed /^$/d'
```
delete the last line
```
sed $d
```
sed '1d' to remove the header for all csv files

```
ls *csv | parallel 'cut -f, -d 2 | sed '1d' > {/.}.list'
```
2/ print the second line of a LARGE file and quit:

sed -n '2{p;q}'

#unix #oneliner #bioinformatics #sed
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More from @tangming2005

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8 tools to deal with tsv/csv files on the command line:
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#unix #data #commandline
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2/ my second paper was on identifying a cofactor SFMBT as a co-factor of LSD1 complex divingintogeneticsandgenomics.rbind.io/publication/20… both papers are pure biochemistry studies, and I am so proud that I did western blot, northern blot, lentivirus knock down and ChIP-qPCR etc
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Sep 9
1/ Bioinformatics one-liner day Day 15
get all the folders' sizes in the current folder: du -h --max-depth=1
the total size of the current directory: du -sh .
display disk space: df -h
2/
memory usage: free -mg
open `top -M` with human readable size in Mb, Gb.
install htop htop.dev for better visualization.
#unix #onliner
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2. RT the tweet below to share this thread with your audience
Read 4 tweets
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1/ "What's the most important factor for your success?"
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The most common one I got is "luck".
3/ A little story:

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1/ Using random forest to calculate feature importance?
The importance score might be biased. #machinelearning #featureimportance Thanks @Matthew_N_B for pointing it out
A thread 👇
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3/
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