how to open a file after writing to it using Bash (in one line)-CodePudding

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how to open a file after writing to it using Bash (in one line)

Time：12-20

is there a way to open or cat a file that's been newly created e.g.

cat $(cat 1210.hc.vcf | head -n1 > ok.txt )
open $(cat 1210.hc.vcf | head -n1 > ok.txt )

Open a file after writing to it using Bash (in one line)

CodePudding user response：

You can use tee to write to stdout and the file.

head -n 1 1210.hc.vcf | tee ok.txt

CodePudding user response：

What comes in my mind:

cat 1210.hc.vcf | head -n1 > ok.txt; cat !$