Center text in console with simple pipe like

center(){ l="$(cat -)"; s=$(echo -e "$l"| wc -L); echo "$l" | while read l;do j=$(((s-${#l})/2));echo "$(while ((--j>0)); do printf " ";done;)$l";done;}; ls --color=none / | center
Center the output text in max line length of buffered output pipe;
Sample Output 
center(){ l="$(cat -)"; s=$(echo -e "$l"| wc -L); echo "$l" | while read l;do j=$(((s-${#l})/2));echo "$(while ((--j>0)); do printf " ";done;)$l";done;};

$ls --color=none / | center

            bin
            boot
            dbg
        dead.letter
            dev
            etc
            home
            lib
           lib64
         logton.log
         lost+found
           media
            mnt
           my.cnf
            opt
            proc
            root
            sbin
session_mm_apache2handler0.sem
            srv
            svn
      svn-commit.tmp~
            sys
            tmp
            usr
            var

1
By: glaudiston
2011-02-14 16:50:35
echo ls read wc
2
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What Others Think

Very nice... but how about this: center(){ C=$(tput cols);IFS="";while read L; do S=$((($C-${#L})/2+${#L}));printf "%${S}s\n" $L;done } Building on the work of glaudiston and eightmillion, of course :-) PS Pascal's Triangle looks fantastic!
flatcap · 772 weeks and 6 days ago
tput cols Return the console width... I did not knew yet... very nice. tnx
glaudiston · 772 weeks and 5 days ago

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