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up vote 3 down vote favorite

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.

share|improve this question
up vote 7 down vote accepted

paste is probably the best tool for this job:

$ paste -sd ' ' file
111 222 333
share|improve this answer
    
Awesome, didn't even know this exists, even on AIX :-). Thx. – user165435 yesterday
    
@user165435: It works in any POSIX compliant system. – cuonglm yesterday
    
Nice, I looked it up, paste belongs to coreutils package – warl0ck 16 hours ago
    
@warl0ck: It's POSIX standard, too. – cuonglm 16 hours ago
up vote 3 down vote

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

set -f
somevar="$(tr '\n' ' ' < xxx.lst)"
echo $somevar
share|improve this answer
    
works of course – user165435 yesterday
up vote 0 down vote

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.

share|improve this answer
    
Note that xargs choked on unbalance double quotes line, remove balance double quotes line. – cuonglm yesterday
    
True! xargs -0 < xxx.lst with GNU xargs will work with any unbalanced quote marks. – bgStack15 yesterday

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