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Write in a file with pipe also in same line

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Top Forums Shell Programming and Scripting Write in a file with pipe also in same line
# 8  
Old 12-07-2009
use nawk or gawk

Code:
nawk '
($0 ~ s) {for (c=b+1;c>1;c--) print a[(NR+1-c)%b] ; print }
{a[NR%b]=$0;next }
' b=1 s='3' file.txt

b:- how many line to print before the pattern found.

SmilieSmilieSmilie
# 9  
Old 12-07-2009
this is what tee is for...

ls -lrt | tee some_file | wc -l
# 10  
Old 12-07-2009
Code:
awk '{a[NR]=$0}$0 ~ pattern{for(i=B+1;--i;){printf ((NR-i)? a[NR-i] ORS:x)}}' B=3 pattern=<pattern> infile

Use gawk, nawk or /usr/xpg4/bin/awk on Solaris.
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