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#Estimate the #insert #size with mapped reads $ head -10000 mappings.sam | awk '{ if ($9 > 0) { N+=1; S+=$9; S2+=$9*$9 }} END { M=S/N; print "n="N", mean="M", stdev="sqrt ((S2-M*M*N)/(N-1))}'

List all files by size in Linux $ ls -l -S | sort -k 5 -n #Linux #Size #List

Check the file systems and sizes. $ df --block-size=G #Linux #Size #df

du -sh * | sort | grep "G" #List size of all the directory #Size #List #Directory #Linux

Count the contigs length in index fasta file with samtools. $ awk '{s+=$2}END{print s}' scaffolds.fasta.fai #Fasta #Index #Length #Count #Size #Samtools

Estimate the genome size https://bioinformatics.uconn.edu/genome-size-estimation-tutorial/ #Genome #Size #Estimate

Reformat you fasta sequence with size. $ seqkit seq -w 50 allGenomeContacted.fa > allGenomeContacted_final.fa #Reformat #Fasta #Size

#Filter out #reads with #size to discard reads containing many Ns. BBNorm ( https://sourceforge.net/projects/bbmap/ )

Split the file in Linux with size. $ split --bytes=50M aaaa.fa #split #linux #size

To know the size of the directory in current folder. $ du -sh * #Size #Directory #List #Space #Linux #du

Find a file with certain size and delete them: $ find . -name "see-D-d-ALN_*" -size -10k -delete #Delete #Size #Linux #Tricks

du -sh * will give you the size of all the directories,files etc in current directory in human readable format. #Linux #Size #Tricks #Folders #Files