CODEWITHSUNDEEP
bash
Guerrilla
Guerrilla

Reputation: 14866

Manually pass list of strings to pipe

If a command returns a list of strings I can pipe it to another command.

For instance:

command1 | command2

Lets say command1 returns 2 lines. Is there a way to do the same thing on the command line without a command that generates the lines?

I know this below doesn't work but maybe explains better what I mean:

("string 1", "string 2) | command2

I want to manually specify 2 lines to send into the pipe instead of using a command to generate them.

Is that possible?

Upvotes: 2

Views: 730

Answers (1)

Barmar
Barmar

Reputation: 780974

You can use echo commands:

{ echo "string 1"; echo "string 2"; } | command2

or printf to do it with one command:

printf 'string 1\nstring 2\n' | command2

But if it's many lines, a here-doc is usually easier:

command2 <<EOF
string 1
string 2
EOF

Upvotes: 2

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