3

I have file:

xxx.lst

with values:

111
222
333

I just need to make one line with:

111 222 333

into a variable or standard output.

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4 Answers 4

Reset to default
7

paste is probably the best tool for this job:

$ paste -sd ' ' file
111 222 333
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4
  • Awesome, didn't even know this exists, even on AIX :-). Thx. Commented Apr 13, 2016 at 8:15
  • @user165435: It works in any POSIX compliant system. Commented Apr 13, 2016 at 8:26
  • Nice, I looked it up, paste belongs to coreutils package Commented Apr 14, 2016 at 2:19
  • @warl0ck: It's POSIX standard, too. Commented Apr 14, 2016 at 2:23
3

You can use tr to replace line separator with space, e.g

set -f
somevar="$(tr '\n' ' ' < xxx.lst)"
echo $somevar
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1
  • works of course Commented Apr 13, 2016 at 8:16
0

Xargs echo and i/o redirection.

xargs echo < xxx.lst

You don't even need the echo.

xargs < xxx.lst

Tested on ksh/aix and bash/GNU.

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2
  • Note that xargs choked on unbalance double quotes line, remove balance double quotes line. Commented Apr 13, 2016 at 13:32
  • True! xargs -0 < xxx.lst with GNU xargs will work with any unbalanced quote marks. Commented Apr 13, 2016 at 13:43
0

This also work:

set -f; printf '%s ' $(cat infile )
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