Search string and print the above line and below lines?. Post: 302736111

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Top Forums Shell Programming and Scripting Search string and print the above line and below lines?. Post 302736111 by laknar on Monday 26th of November 2012 08:36:09 PM

11-26-2012

Registered User

Search string and print the above line and below lines?.

if the first string matches then print the previous line and current line and also print the following lines if the other string search matches.

Input
------

TranTime 2012 10 12
The Record starts here
Accountnumber: 4632473431274
TxnCode 323
TranID 329473242834
ccsdkcnsdncskd wdededadlksadksadaskdsakd
dadscczxczccc
Balance 2000.00
TranTime 2012 10 13
The Record starts here
Accountnumber: 5435478454
TxnCode 312
TranID 5634875438
Balance 4000.00
csdhcsdjcsdcsdcnskjcjsdkjsdj
TranTime 2012 10 15
The Record starts here
Accountnumber: 31231231232
TxnCode 212
sdjhcsdjcbsd csdmcndscndskc
TranID 6546754654
Balance 1000.00

Here is what i have tried so far. but no luck.

awk '{
if ($0 ~ /The Record starts here/)
{
print a;
}
{
a = $0;
}
else
if ($0 ~ /TranID|Balance|Accountnumber/)
{
print;
}
else
{
print "else"
}
}'

Expected output.

TranTime 2012 10 12
The Record starts here
Accountnumber: 4632473431274
TranID 329473242834
Balance 2000.00
TranTime 2012 10 13
The Record starts here
Accountnumber: 5435478454
TranID 5634875438
Balance 4000.00
TranTime 2012 10 15
The Record starts here
Accountnumber: 31231231232
TranID 6546754654
Balance 1000.00

any help will be greatly appreciated.

Thanks.

laknar

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LEARN ABOUT PLAN9

pr

PR(1)							      General Commands Manual							     PR(1)

NAME

       pr - print file

SYNOPSIS

       pr [ option ...	] [ file ...  ]

DESCRIPTION

       Pr  produces  a printed listing of one or more files on its standard output.  The output is separated into pages headed by a date, the name
       of the file or a specified header, and the page number.	With no file arguments, pr prints its standard input.

       Options apply to all following files but may be reset between files:

       -n     Produce n-column output.

       +n     Begin printing with page n.

       -b     Balance columns on last page, in case of multi-column output.

       -d     Double space.

       -en    Set the tab stops for input text every n spaces.

       -h     Take the next argument as a page header (file by default).

       -in    Replace sequences of blanks in the output by tabs, using tab stops set every n spaces.

       -f     Use formfeeds to separate pages.

       -ln    Take the length of the page to be n lines instead of the default 66.

       -m     Print all files simultaneously, each in one column.

       -n     Number the lines of each file.

       -on    Offset the left margin n character positions.

       -sc    Separate columns by the single character c instead of aligning them with white space.  A missing c is taken to be a tab.

       -t     Do not print the 5-line header or the 5-line trailer normally supplied for each page.

       -wn    For multi-column output, take the width of the page to be n characters instead of the default 72.

SOURCE

       /sys/src/cmd/pr.c

SEE ALSO

       cat(1), lp(1)

																	     PR(1)