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Need an awk / sed / or perl one-liner to remove last 4 characters with non-unique pattern.

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Top Forums Shell Programming and Scripting Need an awk / sed / or perl one-liner to remove last 4 characters with non-unique pattern.
# 1  
Old 10-04-2011
Need an awk / sed / or perl one-liner to remove last 4 characters with non-unique pattern.
Hi, I'm writing a ksh script and trying to use an awk / sed / or perl one-liner to remove the last 4 characters of a line in a file if it begins with a period.

Here is the contents of the file... the column in which I want to remove the last 4 characters is the last column. ($6 in awk). I've tried a few commands but I'm totally stumped. Thanks for any assistance.

Code:
 
QUX         | LIBMEM.SYS.OA      | 20110920 110704.951
SA          | LIBMEM.SYS.OA      | 20110920 110706
SD          | LIBMEM.SYS.OA      | 20110920 110708
SP          | LIBMEM.SYS.OA      | 20110920 110711.503
SR          | LIBMEM.SYS.OA      | 20110920 110713
SYSTEM      | LIBMEM.SYS.OA      | 20110920 110714.413
UB          | LIBMEM.SYS.OA      | 20110920 110716
VDRDAILY    | LIBMEM.SYS.OA      | 20110920 110720
VDRWKLY     | LIBMEM.SYS.OA      | 20110920 110831
VP          | LIBMEM.SYS.OA      | 20110920 110834
WC          | LIBMEM.SYS.OA      | 20110922 131601.102
WS          | LIBMEM.SYS.OA      | 20110923 084845.744
AD          | LIBMEM.SYS.OA      | 20110920 112837
AQ          | LIBMEM.SYS.OA      | 20110920 112839.880
DD          | LIBMEM.SYS.OA      | 20110920 112840
DP          | LIBMEM.SYS.OA      | 20110920 112842

Desired file contents:
Code:
 
QUX         | LIBMEM.SYS.OA      | 20110920 110704
SA          | LIBMEM.SYS.OA      | 20110920 110706
SD          | LIBMEM.SYS.OA      | 20110920 110708
SP          | LIBMEM.SYS.OA      | 20110920 110711
SR          | LIBMEM.SYS.OA      | 20110920 110713
SYSTEM      | LIBMEM.SYS.OA      | 20110920 110714
UB          | LIBMEM.SYS.OA      | 20110920 110716
VDRDAILY    | LIBMEM.SYS.OA      | 20110920 110720
VDRWKLY     | LIBMEM.SYS.OA      | 20110920 110831
VP          | LIBMEM.SYS.OA      | 20110920 110834
WC          | LIBMEM.SYS.OA      | 20110922 131601
WS          | LIBMEM.SYS.OA      | 20110923 084845
AD          | LIBMEM.SYS.OA      | 20110920 112837
AQ          | LIBMEM.SYS.OA      | 20110920 112839
DD          | LIBMEM.SYS.OA      | 20110920 112840
DP          | LIBMEM.SYS.OA      | 20110920 112842

Thanks!
# 2  
Old 10-04-2011
Code:
sed 's/[.][0-9]*$//' myFile

This User Gave Thanks to vgersh99 For This Post:
right_coaster
# 3  
Old 10-04-2011
Awesome! worked perfect, thanks so much.
# 4  
Old 10-04-2011
any example in AWK ?
# 5  
Old 10-04-2011
Code:
awk '{sub(/\.[0-9]*$/,"")}11' input_file

--ahamed
# 6  
Old 10-04-2011
Quote:
Originally Posted by ejazsyed
any example in AWK ?
similar idea:
Code:
nawk '{gsub("[.][0-9]*$", "");print}' myFile

# 7  
Old 10-04-2011
Code:
 
nawk -F\| 'BEGIN{OFS="|"}{if($NF~/\./)$NF=substr($NF,1,index($NF,".")-1); print}' test                                                           
QUX         | LIBMEM.SYS.OA      | 20110920 110704
SA          | LIBMEM.SYS.OA      | 20110920 110706
SD          | LIBMEM.SYS.OA      | 20110920 110708
SP          | LIBMEM.SYS.OA      | 20110920 110711
SR          | LIBMEM.SYS.OA      | 20110920 110713
SYSTEM      | LIBMEM.SYS.OA      | 20110920 110714
UB          | LIBMEM.SYS.OA      | 20110920 110716
VDRDAILY    | LIBMEM.SYS.OA      | 20110920 110720
VDRWKLY     | LIBMEM.SYS.OA      | 20110920 110831
VP          | LIBMEM.SYS.OA      | 20110920 110834
WC          | LIBMEM.SYS.OA      | 20110922 131601
WS          | LIBMEM.SYS.OA      | 20110923 084845
AD          | LIBMEM.SYS.OA      | 20110920 112837
AQ          | LIBMEM.SYS.OA      | 20110920 112839
DD          | LIBMEM.SYS.OA      | 20110920 112840
DP          | LIBMEM.SYS.OA      | 20110920 112842

---------- Post updated at 08:23 AM ---------- Previous update was at 08:19 AM ----------

Code:
$ perl -lane '$_=~s/[.][0-9]*$//; print $_' test
QUX         | LIBMEM.SYS.OA      | 20110920 110704
SA          | LIBMEM.SYS.OA      | 20110920 110706
SD          | LIBMEM.SYS.OA      | 20110920 110708
SP          | LIBMEM.SYS.OA      | 20110920 110711
SR          | LIBMEM.SYS.OA      | 20110920 110713
SYSTEM      | LIBMEM.SYS.OA      | 20110920 110714
UB          | LIBMEM.SYS.OA      | 20110920 110716
VDRDAILY    | LIBMEM.SYS.OA      | 20110920 110720
VDRWKLY     | LIBMEM.SYS.OA      | 20110920 110831
VP          | LIBMEM.SYS.OA      | 20110920 110834
WC          | LIBMEM.SYS.OA      | 20110922 131601
WS          | LIBMEM.SYS.OA      | 20110923 084845
AD          | LIBMEM.SYS.OA      | 20110920 112837
AQ          | LIBMEM.SYS.OA      | 20110920 112839
DD          | LIBMEM.SYS.OA      | 20110920 112840
DP          | LIBMEM.SYS.OA      | 20110920 112842
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