The output of an mysql command doesnt correctly align the titels (using script).
Here is the sql command in script.sh
#!/usr/bin/bash
echo "select * from hw_inventory "| mysql --host=localhost --user=root --database=monitor > /tmp/inventory
This gives me following output in /tmp/inventory
ip_address entity_index entity_physname entity_physdesc entity_serial
10.212.0.1 1000 Switch 1 WS-C3850-12S FOC1842U117
10.212.0.1 1009 Switch 1 - Power Supply A Switch 1 - Power Supply A LIT18300URD
10.212.0.1 1010 Switch 1 - Power Supply B Switch 1 - Power Supply B LIT183506NH
10.212.0.1 1034 Switch 1 FRU Uplink Module 1 2x1G 2x10G Uplink Module FOC18363NJX
As you cen see the alignment (tabs) is not in the same way as the text with Switch 1 should start under entity_physname.
It needs to be like following output:
ip_address entity_index entity_physname entity_physdesc entity_serial
10.212.0.1 1000 Switch 1 WS-C3850-12S FOC1842U117
10.212.0.1 1009 Switch 1 - Power Supply A Switch 1 - Power Supply A LIT18300URD
10.212.0.1 1010 Switch 1 - Power Supply B Switch 1 - Power Supply B LIT183506NH
10.212.0.1 1034 Switch 1 FRU Uplink Module 1 2x1G 2x10G Uplink Module FOC18363NJX
Any ideas?
Thanks in advance
For formatting the output from the mysql use the -t param
"select * from hw_inventory "| mysql -t --host=localhost --user=root --database=monitor > /tmp/inventory
Related
I'm looking to run a command a given number of times in an Alpine Linux docker container which features the /bin/ash shell.
In Bash, this would be
bash-3.2$ for i in {1..3}
> do
> echo "number $i"
> done
number 1
number 2
number 3
However, the same syntax doesn't seem to work in ash:
> docker run -it --rm alpine /bin/ash
/ # for i in 1 .. 3
> do echo "number $i"
> done
number 1
number ..
number 3
/ # for i in {1..3}
> do echo "number $i"
> done
number {1..3}
/ #
I had a look at https://linux.die.net/man/1/ash but wasn't able to easily find out how to do this; does anyone know the correct syntax?
I ended up using seq with command substitution:
/ # for i in $(seq 10)
> do echo "number $i"
> done
number 1
number 2
number 3
number 4
number 5
number 6
number 7
number 8
number 9
number 10
Simply like with bash or shell:
$ ash -c "for i in a b c 1 2 3; do echo i = \$i; done"
output:
i = a
i = b
i = c
i = 1
i = 2
i = 3
Another POSIX compatible alternative, which does not use potentially slow expansion, is to use
i=1; while [ ${i} -le 3 ]; do
echo ${i}
i=$(( i + 1 ))
done
How to run simple grep command in a tcl script and get output
grep B file1 > temp # bash grep command need to execute inside tcl commad,
file1 looks like this:
1 2 3 6 180.00 B
1 2 3 6 F
2 3 6 23 50.00 B
2 3 6 23 F
these do not work
exec grep B file.txt > temp
child process exited abnormally
exec "grep B pes_test.com > temp1"
couldn't execute "grep -e B ./pes_test.com > temp1": no such file or directory
exec /bin/sh -c {grep -e B ; true} < pes_test.com > tmp1
works but do not gives output,
exec throws an error when the process returns non-zero. See exec and the Tcl wiki
try {
set result [exec grep $pattern $file]
} on error {e} {
# typically, pattern not found
set result ""
}
Ref: try man page
Have anyone used panel var in R?
Currently I'm using the package panelvar of R. And I'm getting this error :
Error in `[.data.frame`(data, , c(colnames(data)[panel_identifier], required_vars)) :
undefined columns selected
And my syntax currently is:
model1<-pvargmm(
dependent_vars = c("Change.."),
lags = 2,
exog_vars = c("Price"),
transformation = "fd",
data = base1,
panel_identifier = c("id", "t"),
steps = c("twostep"),
system_instruments = FALSE,
max_instr_dependent_vars = 99,
min_instr_dependent_vars = 2L,
collapse = FALSE)
I don't know why my panel_identifier is not working, it's pretty similar to the example given by panelvar package, however, it doesn't work, I want to appoint that base1 is on data.frame format. any ideas? Also, my data is structured like this:
head(base1)
id t country DDMMYY month month_text day Date_txt year Price Open
1 1 1296 China 1-4-2020 4 Apr 1 Apr 01 2020 12588.24 12614.82
2 1 1295 China 31-3-2020 3 Mar 31 Mar 31 2020 12614.82 12597.61
High Low Vol. Change..
1 12775.83 12570.32 NA -0.0021
2 12737.28 12583.05 NA 0.0014
thanks in advance !
Check the documentation of the package and the SSRN paper. For me it helped to ensure all entered formats are identical (you can check this with str(base1) command). For example they write:
library(panelvar)
data("Dahlberg")
ex1_dahlberg_data <-
pvargmm(dependent_vars = .......
When I look at it I get
>str(Dahlberg)
'data.frame': 2385 obs. of 5 variables:
$ id : Factor w/ 265 levels "114","115","120",..: 1 1 1 1 1 1 1 1 1 2 ...
$ year : Factor w/ 9 levels "1979","1980",..: 1 2 3 4 5 6 7 8 9 1 ...
$ expenditures: num 0.023 0.0266 0.0273 0.0289 0.0226 ...
$ revenues : num 0.0182 0.0209 0.0211 0.0234 0.018 ...
$ grants : num 0.00544 0.00573 0.00566 0.00589 0.00559 ...
For example the input data must be a data.frame (in my case it had additional type specifications like tibble or data.table). I resolved it by casting as.data.frame() on it.
So dc is a great tool for converting between bases - handy for those bit twiddling coding jobs. e.g to convert 1078 into binary I can do this:
bash> echo "2o1078p" | dc
10000110110
However I can't get it to print fractions between 0 and 1 correctly.
Trying to convert 0.3 into binary:
bash> echo "2o10k 0.3p" | dc
.0100
But 0.0100(bin) = 0.25 not 0.3.
However if I construct the value manually I get the right answer
bash> echo "2o10k 3 10 / p" | dc
.0100110011001100110011001100110011
Well it looks like its giving me more than the 10 significant figures I ask for but thats OK
Am I doing something wrong? Or am I trying to make dc do something that its not able to do?
bash> dc --version
dc (GNU bc 1.06) 1.3
...
Strange. My first thought was that maybe precision only applies to calculations, not conversions. But then it only works for division, not addition, subtraction, or multiplication:
echo "2o10k 0.3 1 / p" | dc
.0100110011001100110011001100110011
echo "2o10k 0.3 0 + p" | dc
.0100
echo "2o10k 0.3 0 - p" | dc
.0100
echo "2o10k 0.3 1 * p" | dc
.0100
As for precision, the man page says "The precision is always measured in decimal digits, regardless of the current input or output radix." That explains why the output (when you get it) is 33 significant bits.
It seems that dc is getting the number of significant figures from the input.
Now 1/log10(2)=3.32 so each decimal significant digit is 3.3 binary digits.
Looking at the output of dc for varying input SF lengths shows:
`dc -e "2o10k 0.3 p"` => .0100
`dc -e "2o10k 0.30 p"` => .0100110
`dc -e "2o10k 0.300 p"` => .0100110011
`dc -e "2o10k 0.3000 p"` => .01001100110011
A table of these values and expected value, ceil(log10(2)*SFinput) is as follows:
input : output : expected output
1 : 4 : 4
2 : 7 : 7
3 : 10 : 10
4 : 14 : 14
And dc is behaving exactly as expected.
So the solution is to either use the right number of significant figures in the input, or the division form dc -e "2o10k 3 10 / p"
(See my answer below. Leaving this up in case it helps someone else.)
What follows is a series of attempts to dump a query to an outfile on a new FreeBSD box that my site has moved to. The results are the same if I log in as me or if I log in as root. I hope the style isn't too annoying. I have my comments commented out around the actual code and output.
// try to dump query to my home dir
SELECT pmr.datetime_requested,
nfo.postal_code
FROM
print_mailing_request pmr,
personal_info nfo
WHERE
nfo.person = pmr.person AND
pmr.datetime_requested >= "2010-01-01 00:00:00" AND
(pmr.print_mailing = 31 OR pmr.print_mailing = 30)
ORDER BY pmr.datetime_requested INTO OUTFILE '/usr/home/david/x';
ERROR 1 (HY000): Can't create/write to file '/usr/home/david/x' (Errcode: 2)
// tried creating file first with touch and even chmod 077 file
// but same error each time
// OK, lets try /tmp
SELECT pmr.datetime_requested,
nfo.postal_code
FROM
print_mailing_request pmr,
personal_info nfo
WHERE
nfo.person = pmr.person AND
pmr.datetime_requested >= "2010-01-01 00:00:00" AND
(pmr.print_mailing = 31 OR pmr.print_mailing = 30)
ORDER BY pmr.datetime_requested INTO OUTFILE '/tmp/x';
Query OK, 24654 rows affected (0.78 sec)
// so let's look at the file
less /tmp/x
/tmp/x: No such file or directory
// Log back into mysql and try same query again
ERROR 1086 (HY000): File '/tmp/x' already exists
ls /tmp
20100325180233.gtg2010.csv 20100330094652.gtg2010.csv
20100325180448.gtg2010.csv 2010_Q1_UNO.csv
20100325181446.gtg2010.csv 4724.csv
20100325181927.gtg2010.csv aprbUfvxp
20100326003002.gtg2010.csv dave.txt
20100327003002.gtg2010.csv etr.xml
20100328003002.gtg2010.csv mysql.sock
20100329003003.gtg2010.csv
// No file x.
// If I run query with no INTO OUTFILE I see 24000+ rows of
| 2010-04-04 13:27:09 | 33156 |
| 2010-04-04 13:27:10 | 33156 |
| 2010-04-04 13:30:04 | NE38 8SR |
| 2010-04-04 14:27:03 | 00901 |
| 2010-04-04 14:37:04 | 75001 |
| 2010-04-04 14:53:05 | 78640 |
| 2010-04-04 15:15:03 | 07410 |
| 2010-04-04 15:27:04 | 43235 |
// So I know it isn't the query...
// Advice?
Doh! When I log into mysql on this machine my connection string has an IP address in it. /tmp as far as mysql is concerned is not on the machine I am logged into...
so I solved problem by using mysql -e eg:
mysql -h my.db.com -u usrname--password=pass db_name -e 'SELECT foo FROM bar' > /tmp/myfile.txt