问题
I have following lines:
057 - - No adod3 stptazlqn 10 753
tlm 10 027
stp 10 021
12 - - No azad1
bbcz 30 12
03085 - - No azad1 azad1222
xxaz 1 12
azzst 1 12
hss 2 12
what I need to do is:
- Find lines starting with a number [0-9].
- Copy the first 5 columns separated by a space ' '.
- Paste it in the next lines not starting with a number.
057 - - No adod3 stptazlqn 10 753 057 - - No adod3 tlm 10 027 057 - - No adod3 stp 10 021 12 - - No azad1 12 - - No azad1 bbcz 30 12 03085 - - No azad1 azad1222 03085 - - No azad1 xxaz 1 12 03085 - - No azad1 azzst 1 12 03085 - - No azad1 hss 2 12
Thanks for any help in advance.
Cheers, Slaw
回答1:
awk to the rescue!
$ awk '{if($1+0==$1) p=$1 FS $2 FS $3 FS $4 FS $5; else $0=p FS $0}1' file | column -t
057 - - No adod3 stptazlqn 10 753
057 - - No adod3 tlm 10 027
057 - - No adod3 stp 10 021
12 - - No azad1
12 - - No azad1 bbcz 30 12
03085 - - No azad1 azad1222
03085 - - No azad1 xxaz 1 12
03085 - - No azad1 azzst 1 12
03085 - - No azad1 hss 2 12
here FS is the field separator by default is the white space. Number test is done with zero addition; pipe to column for pretty formatting. The 1 at the end is the shorthand for printing the line ($0 variable)
回答2:
This might work for you (GNU sed):
sed -r '/^[0-9]/!G;s/(.*\S)\s*\n((\S+\s*){5}).*/\2 \1/;h' file
Use pattern matching to extract the fields from line beginning with an integer which will have been appended to a line that did not.
To align the columns correctly use:
sed -r '/^[0-9]/!G;s/(.*\S)\s*\n((\S+\s*){5}).*/\2 \1/;h' file | column -t
来源：https://stackoverflow.com/questions/52543683/sed-awk-perl-find-a-regex-copy-5-columns-of-this-line-and-paste-to-it-at-the-b