使用awk在BASH中的特定列中搜索变量

Question

I have LOG_FILE like below:

LOG|Server301|2015|05|12|00|58|35|572617|0|COMP|002.01.003.00|DSOHMSN2ViewCallback.cpp|142|CALLBACK:DSOHMSN2ViewCallback::FLIPBypassOn Changed SN=2 old value =2 new value =1
LOG|Client2|2015|05|12|00|58|35|593088|0|COMP|002.01.003.00|AMSN.cpp|12577|CALLBACK:OHMOAM::ohmSN2ViewChange, Old FLIPBypassOnMT
LOG|Server302|2015|05|12|00|58|35|593116|0|COMP|002.01.003.00|AMSN.cpp|12590|CALLBACK:OHMOAM::ohmSN4ViewChange, New FLIPBypassOnMT
LOG|Server301|2015|05|12|00|58|35|593302|0|COMP|002.01.003.00|AMSN.cpp|12577|CALLBACK:OHMOAM::ohmSN3ViewChange, Old disableFLIPBypassOnMT
LOG|Client1|2015|05|12|00|58|35|593324|0|COMP|002.01.003.00|AMSN.cpp|12590|CALLBACK:OHMOAM::ohmSN2ViewChange, New disableFLIPBypassOnMT

I just want to print line no which have

• word Server at 2nd column

• word CALLBACK at 15th column

• variable $parameter_name at 15th column

I executed the below command:

parameter_name="FLIPBypassOnMT"
$(awk -v var="$parameter_name" -F'|' '$2 ~ /Server/ && $15 ~ /CALLBACK/  && index($15,var) { print NR}' $LOG_FILE 2>/dev/null | tail -1)

But Not getting the line no. I am using sun4-solaris. please help me out. NB:

$(awk -v var="$parameter_name" -F'|' '$2 ~ /Server/ && $15 ~ /CALLBACK/ { print NR}' $LOG_FILE 2>/dev/null | tail -1) 

is running fine. but need all the three criteria.

Answer 1

Have you tried

$(awk -v var="$parameter_name" -F'|' '$2 ~ /Server/ && $15 ~ /CALLBACK/  && $15 ~ var { print NR}' $LOG_FILE 2>/dev/null | tail -1)

I'm not sure why you used the index function when you can use the ~ regex operator again.

Answer 2

I would suspect that the problem lies elsewhere.

If

awk blah blah

prints 23 then

$(awk blah blah)

will attempt to execute 23 as a shell command (and usually fail). Remove the process substitution at least while debugging this problem.

Tangentially, some Sun systems have a very limited Awk, but I guess that's not the problem here. Still, you might want to google for "Solaris XPG4 Awk".

Answer 3

谢谢你们@tripleee 和@bkmoney 我已经使用了下面的命令并且工作正常：

$(nawk -v var="$parameter_name" -F'|' '$2 ~ /Server/ && $15 ~ /CALLBACK/  && $15 ~ var { print NR}' $LOG_FILE 2>/dev/null | tail -1)