linux：在一个命令中触摸空文件和zip

Question

I need to create a bunch of .gz files for testing something. Is it possible (in unix based shell) to make an empty file (eg by touch file1 ) and zip (eg file1.gz) using a simple one-liner (along: touch file1 | zip ). How can I redirect the file into zip?

Answer 1

gzip < /dev/null > file.gz

Ie feed gzip empty input and redirect the output to file.gz . No temporary empty file needed. 😉

This assumes that there's a /dev/null available (ie a POSIX(-ish) system). Alternatives would be:

:         | gzip […]
true      | gzip […]
printf '' | gzip […]
echo -n   | gzip […] # Won't work in strictly POSIX environments
…

Ie anything that's available and prints nothing to STDOUT.

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^{You mentioned zip , but since you said you needed .gz files I assume you want gzip .}

Answer 2

例如：

touch file1 && zip file1.zip file1