Add new lines with a space in beginning

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Insert at the beginning of odd lines

Hello people, I am trying with sed to insert some text at the beginning of each odd line of a file but no luck. Can you please help. Awk is also suitable but I am not very familiar with it. Thank you in advance for any help.

2. Shell Programming and Scripting

SED - insert space at the beginning of line and multi replace command

hi I am trying to use SED to replace the line matching a pattern using the command sed 'pattern c\ new line ' <file1 >file 2 I got two questions 1. how do I insert a blank space at the beginning of new line? 2. how do I use this command to execute multiple command using the -e...

3. Shell Programming and Scripting

Space at beginning of the line

How can I delete spaces at the begining of all lines of my file ?

4. Shell Programming and Scripting

Extract lines between 2 strings add white space

I'm trying to extract all the lines between 2 strings (including the lines containing the strings) To make the strings unique I need to include white space if possible. I'm not certain how to do that. sed -n '/ string1 /,/string2/p' infile > outfile &

5. Solaris

deleting blank space in beginning of line in vi

How can we delete all the blank spaces in the beginning of some lines in a text in vi? Thanks,

6. Shell Programming and Scripting

Swapping lines beginning with certain words using sed/awk

I have a large file which reads like this: fixed-address 192.168.6.6 { hardware ethernet 00:22:64:5b:db:b1; host X; } fixed-address 192.168.6.7 { hardware ethernet 00:22:64:5b:db:b3; host Y; } fixed-address 192.168.6.8 { hardware ethernet 00:22:64:5b:db:b4; host A; }...

7. Shell Programming and Scripting

Remove white space at the beginning of lines

Hi! I store some data obtained with grep or awk in a file. The problem is that some lines have white space at the begining : line1 line2 line3 I use something like grep WORD INFILE >> OUTFILE awk >> OUTFILE I would love if it were possible to remove the white whitout parsing the...

8. Shell Programming and Scripting

Adding words to beginning of lines

I have a file that contains a great number of lines, let's say 183 lines, and I want to add: echo " to the beginning of each line. What is the easiest way to do it? Tx

9. Shell Programming and Scripting

grep - to exclude lines beginning with pattern

11132 13069 11137 11142 13070 Can I use grep command to exclude all lines beginning with 13? I dont want to use grep -v 13 as potentially there will be a number with something like 11013 that I would exclude in error..

10. Shell Programming and Scripting

delete lines from file2 beginning w/file1

I've been searching around here and other places, but can't put this together... I've got a unique list of words in file 1 (one word on each line). I need to delete each line in file2 that begins with the word in file1. I started this way, but want to know how to use file1 words instead...

LEARN ABOUT PLAN9

join

JOIN(1) 						      General Commands Manual							   JOIN(1)

NAME

       join - relational database operator

SYNOPSIS

       join [ options ] file1 file2

DESCRIPTION

       Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2.  If one of the file names is the
       standard input is used.

       File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the  first	in
       each line.

       There  is  one line in the output for each pair of lines in file1 and file2 that have identical join fields.  The output line normally con-
       sists of the common field, then the rest of the line from file1, then the rest of the line from file2.

       Input fields are normally separated spaces or tabs; output fields by space.  In this case, multiple separators count as	one,  and  leading
       separators are discarded.

       The following options are recognized, with POSIX syntax.

       -a n   In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.

       -v n   Like -a, omitting output for paired lines.

       -e s   Replace empty output fields by string s.

       -1 m
       -2 m   Join on the mth field of file1 or file2.

       -jn m  Archaic equivalent for -n m.

       -ofields
	      Each  output  line  comprises the designated fields.  The comma-separated field designators are either 0, meaning the join field, or
	      have the form n.m, where n is a file number and m is a field number.  Archaic usage allows separate arguments for field designators.

       -tc    Use character c as the only separator (tab character) on input and output.  Every appearance of c in a line is significant.

EXAMPLES

       sort /adm/users | join -t: -a 1 -e "" - bdays
	      Add birthdays to password information, leaving unknown birthdays empty.  The layout of is given in users(6); bdays  contains  sorted
	      lines like

       tr : ' ' </adm/users | sort -k 3 3 >temp
       join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
	      Print all pairs of users with identical userids.

SOURCE

       /sys/src/cmd/join.c

SEE ALSO

       sort(1), comm(1), awk(1)

BUGS

       With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
       One of the files must be randomly accessible.

																	   JOIN(1)

UNIX for Advanced & Expert Users