User:Ks sudhir/Awk
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Sample awk scripts
awk 'BEGIN{x=0;n=1000;}{if (length($0) > x ) x = length($0);if (length($0)<n) n= length($0);}END{print "Max=",x," Min=",n;}' /tmp/my_element_file
awk -v theDate=$CURDATE -v tmpDir=${CLEANUPTEMPDIR} '{
# split the config line into different fields
count = split($0,a," ");
if (($0 !~ "^#") && (count >= 4)) # ignore if else
{
a[3] = "+" a[3];
name = a[2];
gsub(/\*/,"\\*",name);
execCmd = "";
findCmd = sprintf("find %s -name %s -mtime %s ! -type d |sort >%s/t;
if (a[4] == "mv")
{
if (count != 5) {print "ERROR incorrect args->",$0;break;}
execCmd = sprintf("%s |xargs -i mv {} %s" ,findCmd,a[5]);
}
else if (a[4] == "rm")
{
if (count != 4) {print "ERROR incorrect args->",$0;break;}
execCmd = sprintf("%s |xargs -i rm -f {}",findCmd);
}
else if (a[4] == "tar")
{
if (count < 5) {print "ERROR incorrect args->",$0;break;}
tarFile = sprintf("%s/%s_%s.tar",a[5],a[6],theDate);
if (a[6] == "") a[6] = "myproject";
findCmd = sprintf("cd %s;find %s -mtime %s ! -type d " \
,a[1],a[2],a[3]);
findRmCmd = sprintf("%s -exec rm -f {} \;",findCmd);
execCmd = sprintf("cd %s;tar cf %s `%s` && gzip -f %s && %s" \
,a[1],tarFile,findCmd,tarFile,findRmCmd);
}
else print "ERROR unknown cmd->",$0;
if (execCmd == "" )
break;
print "Cmd->",execCmd;
print("Processing files :");
retVal = system(findCmd);
if (retVal == 0)
{
retVal = system(execCmd);
if (retVal != 0) print "ERROR running command :",retVal;
}
}
}' $CONFIGFILE >> $LOGFILE 2> $ERRFILE
