in reply to Re: Reading file and matching lines
in thread Reading file and matching lines

One liner

Prompt> perl -ne ' next if !/^E/; print $_; ' datafile

E99HEADER|006|001
E99INSSCH|052|
E99POLCOM|1||IIL|62|35119849249024|||||
E99INSFAC2|C00124||||||XAJX0727,YGAX0000,ZAAJ0203,VABA0018,WJZA1800|

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Re^3: Reading file and matching lines
by tbone654 (Beadle) on Feb 11, 2014 at 20:41 UTC

    modified one-liner and data to test... 

    F98020A@LUS76E8012758 /cygdrive/c/package
$ perl -ne ' if (/^h/){print "error starts with h program exiting"; exit;} if (/^G/){exit;} next if !/^E/; print $_;' data
E99HEADER|006|001
E99INSSCH|052|
E99POLCOM|1||IIL|62|35119849249024|||||
E99INSFAC2|C00124||||||XAJX0727,YGAX0000,ZAAJ0203,VABA0018,WJZA1800|

F98020A@LUS76E8012758 /cygdrive/c/package
$ cat data  (note: changed the data to have E's after old)
Q165HWN0X001
Q165HWN0X002
Q165HWN0X003
E99HEADER|006|001
E99INSSCH|052|
E99POLCOM|1||IIL|62|35119849249024|||||
E99INSFAC2|C00124||||||XAJX0727,YGAX0000,ZAAJ0203,VABA0018,WJZA1800|
G35119849249024
h189SMA2
E99INSSCH|052|
E99POLCOM|1||IIL|62|35119849249024|||||
E99INSFAC2|C00124||||||XAJX0727,YGAX0000,ZAAJ0203,VABA0018,WJZA1800|
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