Some of my files list hardware errors (we test electronic components), some have none. If the file name has no errors, I still want to display a message like "No error", else I display the error from the file itself.
I came up with this (with help)
Code:
for myfile in `find . -name "R*VER" -mtime +1`
do
somestr=`grep -H ^err $myfile || echo -e "$myfile\tNo error"`
echo "$somestr" |sed 's:./::;s:tmp/::;s/:/\t/;'
echo $somestr | awk -F~ '{print $1"\t"$2"\t"$7"\t"$8"\t"$9"\t"$10}' | sed 's:./::;s:tmp/::;'
done
It works but outputs on two lines i.e.
Code:
RRR1~COS~COSMETICS~99537~jgmdtv132~1~P~R22-200~029053252648~20110607~094718.VER No error
RRR1 COS P R22-200 029053252648 20110607
RRR1~COS~COSMETICS~ETT03~jgm14652.~1~F~R16-300~000894980523~20110607~084053.VER err ->IR Remote Key 1 3310 err
RRR1 COS F R16-300 000894980523 20110607
I am looking to generate dynamically a SQL script with insert statements like so:
Code:
INSERT INTO MYTABLE (COL1,COL2,COL3,COL4,COL5,COL6,COL7,COL8)
VALUES ('RRR1~COS~COSMETICS~99537~jgmdtv132~1~P~R22-200~029053252648~20110607~094718.VER','No error','RRR1','COS','P','R22-200','029053252648','20110607');
INSERT INTO MYTABLE (COL1,COL2,COL3,COL4,COL5,COL6,COL7,COL8)
VALUES ('RRR1~COS~COSMETICS~ETT03~jgm14652.~1~F~R16-300~000894980523~20110607~084053.VER',' err ->IR Remote Key 1 3310 err','RRR1','COS','P','R16-300','000894980523','20110607');
All I would need to do is wrap both lines but I am not clear how to do it (still learning awk/sed). Is it possible?
#!/usr/bin/env ksh
# if you have a lot of these files, this method will
# prevent arg length errors to the for
find . -name "R*VER" -mtime +1 | while read fname
do
( grep "^err" $fname || echo "No error" ) | awk -v base=${fname##*/} '
{
split( base, a, "~" ); # split filename into components
printf( "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n", base, $0, a[1], a[2], a[7], a[8], a[9], a[10] );
}'
done
With some minor changes, it will generate your SQL (based on what you provided; I don't do SQL so I don't know if it's exactly what you need, but you'll get the drift):
Code:
#!/usr/bin/env ksh
# if you have a lot of these files, this method will
# prevent arg length errors to the for
find . -name "R*VER" -mtime +1 | while read fname
do
( grep "^err" $fname || echo "No error" ) | awk -v squote="'" -v base=${fname##*/} '
{
split( base, a, "~" ); # split filename into components
printf( "INSERT INTO MYTABLE (COL1,COL2,COL3,COL4,COL5,COL6,COL7,COL8)\n" );
str = sprintf( "VALUES (\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\")", base, $0, a[1], a[2], a[7], a[8], a[9], a[10] );
gsub( "\"", squote, str ); # replace double quotes with singles
print str;
}'
done
The trick with the single quote, and substitution into str gets round the difficulty of using a single quote inside of an awk programme. It's possible, very messy, and makes for code that is difficult to maintain. There are other ways to do the quoting that are more efficient, but I think this is the most readable.
Other things that might not be too obvious: ${fname##*/} strips the leading path (./tmp/xxx/) from the filename returned by find.
The parens round this statement( grep "^err" $fname || echo "No error" ) cause the statement to be executed in a subshell. This is necessary to cause output from the grep and the echo to pipe properly into the awk.
Hope this helps.
Last edited by agama; 06-15-2011 at 11:37 PM..
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Wrap lines with awk to create SQL script