I keep forgetting this and other handy shortcuts ...
but anyway I am surprised at the time difference for the below
on the fly uncompress, sed, compress
----------------------------------------------------------------------- 12:27:21
$ time gunzip -c bam.cov.csv.gz.chr20.gz |sed 's/ //g' |gzip -c > bam.cov.csv.gz.chr20
real 1m39.638s
user 2m41.098s
sys 0m6.524s
on the fly uncompress, sed
----------------------------------------------------------------------- 13:15:34
$ time gunzip -c bam.cov.csv.gz.chr20.gz |sed 's/ //g' > bam.cov.csv.gz.chr20
real 1m39.865s
user 1m45.999s
sys 0m5.755s
zcat is identical to gunzip -c
but anyway I am surprised at the time difference for the below
on the fly uncompress, sed, compress
----------------------------------------------------------------------- 12:27:21
$ time gunzip -c bam.cov.csv.gz.chr20.gz |sed 's/ //g' |gzip -c > bam.cov.csv.gz.chr20
real 1m39.638s
user 2m41.098s
sys 0m6.524s
on the fly uncompress, sed
----------------------------------------------------------------------- 13:15:34
$ time gunzip -c bam.cov.csv.gz.chr20.gz |sed 's/ //g' > bam.cov.csv.gz.chr20
real 1m39.865s
user 1m45.999s
sys 0m5.755s
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