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[BASH/SH] Regex/Rematching Problems

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Top Forums Shell Programming and Scripting [BASH/SH] Regex/Rematching Problems
# 15  
Old 04-08-2011
guid=`tail -n 10 $log | sed '/ClientUserinfo/!d;s/.*cl_guid\\//;s/\\.*//'`
produces this error:
sed: 1: "/ClientUserinfo/!d;s/.* ...": bad flag in substitute command: '\'
and your last example never prints out ANYTHIN with tst =

Code:
199E
1BCC
0A9B
0AA1
15A5
15AD
0AA2
15A6
15AC

also
Code:
tail -n 10 $log | sed '/ClientUserinfo/!d;s/.*cl_guid\\//;s/\\.*//'
            echo $REPLY

prints out:
"66F1365D96239BB0C6BB7CE6A74C064B

"
(2nd line empy again) BUT WHY???
# 16  
Old 04-08-2011
Could you please copy paste the whole command you entered ? (as far as i have tested, for me it works)

Ooops, yes of course, i called my test file "tst" but you should replace "tst" by the name of your logfile !!!!
# 17  
Old 04-08-2011
Code:
s0lll0s:Desktop S0ll0s$ set -- `tail -9 tst | awk '{print$2}'`
s0lll0s:Desktop S0ll0s$ echo $*

s0lll0s:Desktop S0ll0s$ set -- `tail -9 tst | awk '{print$2}'`
s0lll0s:Desktop S0ll0s$ echo $*

s0lll0s:Desktop S0ll0s$ tail -9 tst | awk '{print$2}'

SOLVED:



Code:



guid=`tail -n 10 $log | sed '/ClientUserinfo/!d;s/.*cl_guid\\\//;s/\\\.*//'`
            echo $guid






had to triple the backslashes!
THXctsgnb!!






s0lll0s:Desktop S0ll0s$ tail -9 tst | awk '{print$2}'









s0lll0s:Desktop S0ll0s$ tail -9 tst | awk '{print$2}'

s0lll0s:Desktop S0ll0s$ tail -9 tst | awk '{print$2}'

while tst looks like:
Code:
199E
1BCC
0A9B
0AA1
15A5
15AD
0AA2
15A6
15AC

# 18  
Old 04-08-2011
or try this replacing the back quote with $( ) notation

Code:
set -- $(tail $log | sed '/ClientUserinfo/!d;s/.*cl_guid\\//;s/\\.*//')

---------- Post updated at 08:42 PM ---------- Previous update was at 08:39 PM ----------

Code:
# log=tst
# echo $*

# cat tst
1
2:35 ClientUserinfo: 0 \ip\localhost\name\test\racered\2\raceblue\2\rate\8000\ut_timenudge\0\cg_rgb\255 0 0\funred\gasmask,h_head\funblue\gasmask,h_head\cg_predictitems\0\cg_physics\1\gear\GZAARWA\cl_anonymous\0\sex\male\handicap\100\color2\5\color1\4\team_headmodel\*james\team_model\james\headmodel\sarge\model\sarge\snaps\20\teamtask\0\cl_guid\F6F1365D96239BB0C6BB7CE6A74C064B\weapmodes\00000110220000020002
2:35 ClientUserinfo: 0 \ip\localhost\name\test\racered\2\raceblue\2\rate\8000\ut_timenudge\0\cg_rgb\255 0 0\funred\gasmask,h_head\funblue\gasmask,h_head\cg_predictitems\0\cg_physics\1\gear\GZAARWA\cl_anonymous\0\sex\male\handicap\100\color2\5\color1\4\team_headmodel\*james\team_model\james\headmodel\sarge\model\sarge\snaps\20\teamtask\0\cl_guid\I6F1365D96239BB0C6BB7CE6A74C064B\weapmodes\00000110220000020002
2:35 ClientUserinfo: 0 \ip\localhost\name\test\racered\2\raceblue\2\rate\8000\ut_timenudge\0\cg_rgb\255 0 0\funred\gasmask,h_head\funblue\gasmask,h_head\cg_predictitems\0\cg_physics\1\gear\GZAARWA\cl_anonymous\0\sex\male\handicap\100\color2\5\color1\4\team_headmodel\*james\team_model\james\headmodel\sarge\model\sarge\snaps\20\teamtask\0\cl_guid\JRF1365D96239BB0C6BB7CE6A74C064B\weapmodes\00000110220000020002
5
6
7
2:35 ClientUserinfo: 0 \ip\localhost\name\test\racered\2\raceblue\2\rate\8000\ut_timenudge\0\cg_rgb\255 0 0\funred\gasmask,h_head\funblue\gasmask,h_head\cg_predictitems\0\cg_physics\1\gear\GZAARWA\cl_anonymous\0\sex\male\handicap\100\color2\5\color1\4\team_headmodel\*james\team_model\james\headmodel\sarge\model\sarge\snaps\20\teamtask\0\cl_guid\K6F1365D96239BB0C6BB7CE6A74C064B\weapmodes\00000110220000020002
9
10
# set -- $(tail $log | sed '/ClientUserinfo/!d;s/.*cl_guid\\//;s/\\.*//')
# echo $*
F6F1365D96239BB0C6BB7CE6A74C064B I6F1365D96239BB0C6BB7CE6A74C064B JRF1365D96239BB0C6BB7CE6A74C064B K6F1365D96239BB0C6BB7CE6A74C064B
#

---------- Post updated at 08:44 PM ---------- Previous update was at 08:42 PM ----------

NOTE: by default, tail only takes the 10 last line so you don't need to specify -n 10
# 19  
Old 04-08-2011
Quote:
Originally Posted by s0lll0s

@Kurumi i dont get how i should read the variable now. I tried adding "print $s" at the end but it returned the whole last 10 lines.
assign it to a variable
Code:
variable=$(tail -10 file  | ruby -e 'while s=gets;puts s.gsub(/.*cl_guid\\(.*?)\\.*/,"\\1") if /ClienUserinfo/;end')

this you should have already learned in basic unix scripting.
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