Hi all,
I have a huge csv file with the following format of data,
Num SNPs, 549997
Total SNPs,555352
Num Samples, 157
SNP, SampleID, Allele1, Allele2
A001,AB1,A,A
A002,AB1,A,A
A003,AB1,A,A
...
...
...
I would like to write out a list of unique SNP (column 1). Could you... (3 Replies)
Hello experts,
I have a requirement where I have to implement two checks on a csv file:
1. Check to see if the value in first column is duplicate, if any value is duplicate script should exit.
2. Check to verify if the value at second column is between "yes" or "no", if it is anything else... (4 Replies)
How can I delete a column from a CSV file which has comma separated value with a string enclosed in double quotes and a comma in between? I have a file 44.csv with 4 lines including the header like the below format:
column1, column2, column3, column 4, column5, column6
12,455,"string with... (6 Replies)
Hi all,
I am new to shell script.I need your help to write a shell script.
I need to write a shell script to extract data from a .csv file where columns are ',' separated.
The file has 5 columns having values say column 1,column 2.....column 5 as below along with their valuesm.... (3 Replies)
I have a .CSV file with the below format:
"column 1","column 2","column 3","column 4","column 5","column 6","column 7","column 8","column 9","column 10
"12310","42324564756","a simple string with a , comma","string with or, without commas","string 1","USD","12","70%","08/01/2013",""... (2 Replies)
input.csv:
Field1,Field2,Field3,Field4,Field4
abc ,123 ,xyz ,000 ,pqr
mno ,123 ,dfr ,111 ,bbb
output:
Field2,Field4
123 ,000
123 ,111
how to fetch the values of Field4 where Field2='123'
I don't want to fetch the values based on column position. Instead want to... (10 Replies)
cat sample.csv
ID,Name,no
1,AAA,1
2,BBB,1
3,AAA,1
4,BBB,1
cut -d',' -f2 sample.csv | sort | uniq
this gives only the 2nd column values
Name
AAA
BBB
How to I get all the columns of CSV along with this? (1 Reply)
Input
1,ABCD,no
2,system,yes
3,ABCD,yes
4,XYZ,no
5,XYZ,yes
6,pc,noCode used to find duplicate with regard to 2nd column
awk 'NR == 1 {p=$2; next} p == $2 { print "Line" NR "$2 is duplicated"} {p=$2}' FS="," ./input.csv
Now is there a wise way to de-duplicate the entire line (remove... (4 Replies)
Discussion started by: deadyetagain
4 Replies
LEARN ABOUT OPENSOLARIS
catch
catch(1T) Tcl Built-In Commands catch(1T)__________________________________________________________________________________________________________________________________________________NAME
catch - Evaluate script and trap exceptional returns
SYNOPSIS
catch script ?varName?
_________________________________________________________________DESCRIPTION
The catch command may be used to prevent errors from aborting command interpretation. The catch command calls the Tcl interpreter recur-
sively to execute script, and always returns without raising an error, regardless of any errors that might occur while executing script.
If script raises an error, catch will return a non-zero integer value corresponding to the exceptional return code returned by evaluation
of script. Tcl defines the normal return code from script evaluation to be zero(0), or TCL_OK. Tcl also defines four exceptional return
codes: 1 (TCL_ERROR), 2 (TCL_RETURN), 3 (TCL_BREAK), and 4 (TCL_CONTINUE). Errors during evaluation of a script are indicated by a return
code of TCL_ERROR. The other exceptional return codes are returned by the return, break, and continue commands and in other special situa-
tions as documented. Tcl packages can define new commands that return other integer values as return codes as well, and scripts that make
use of the return -code command can also have return codes other than the five defined by Tcl.
If the varName argument is given, then the variable it names is set to the result of the script evaluation. When the return code from the
script is 1 (TCL_ERROR), the value stored in varName is an error message. When the return code from the script is 0 (TCL_OK), the value
stored in resultVarName is the value returned from script.
If script does not raise an error, catch will return 0 (TCL_OK) and set the variable to the value returned from script.
Note that catch catches all exceptions, including those generated by break and continue as well as errors. The only errors that are not
caught are syntax errors found when the script is compiled. This is because the catch command only catches errors during runtime. When
the catch statement is compiled, the script is compiled as well and any syntax errors will generate a Tcl error.
EXAMPLES
The catch command may be used in an if to branch based on the success of a script.
if { [catch {open $someFile w} fid] } {
puts stderr "Could not open $someFile for writing
$fid"
exit 1
}
The catch command will not catch compiled syntax errors. The first time proc foo is called, the body will be compiled and a Tcl error will
be generated.
proc foo {} {
catch {expr {1 +- }}
}
SEE ALSO break(1T), continue(1T), error(1T), return(1T), tclvars(1T)KEYWORDS
catch, error
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.0 catch(1T)