why i can't use this command:
echo $arg | cut -c 1,2 | read remainArg or
echo $arg | cut -c 1,2 | read $remainArg
so that the result will be assign to remainArg.
Anyway to do this? :) (1 Reply)
I have to assign a result of a query to a vairable like this
how can i do this
Query = select count(*) from table
x=`db2 ${Query}| sed -n '4p'`
but this doesn't work, is there any other way to assign the result without redirecting the result to temp file. .
Thanks
Mark. (3 Replies)
I have a list of names in a file.
i want to assign those names to a variable in such a manner
eg:
$cat file.txt
pete
lisa
john
var=pete-lisa-john
how do i do this in shell scripting? (10 Replies)
Hi Experts,
I am facing some problem while developing the script.My input config.csv file contains the three columns namely pathname,filename,filetype.Based on the file type i have to use ftp command that is if filetype=csv then do ftp.
The input file is
cat config.csv... (13 Replies)
Dear All,
we have a command output which looks like :
Total 200 queues in 30000 Kbytes
and we're going to get "200" and "30000" for further process. currently, i'm using :
numA=echo $OUTPUT | awk '{print $2}'
numB=echo $OUTPUT | awk '{print $5}'
my question is : can I use just one... (4 Replies)
How can I assign a variable to an variable. IE $car=honda
One way I can do it is export $car=honda
or
let $car=2323
Is there any other ways to preform this task (3 Replies)
I launch 'netstat -a', if string 'ESTABLISHED' found, then VAR=1
#!/bin/bash
VAR=0;
netstat -a | awk '$6 ~ /ESTABLISHED/ {VAR=1}'
I cannot find the right syntax.
thanx guys! (3 Replies)
Hello All,
Hope you're doing well !
I am trying below command to be passed in a shell script, header_date_14 is a variable and $1 is the name of a file I intend to pass as a command line argument, however command line argument is not being accepted.
header_date_14=$(m_dump... (8 Replies)
I have the following script, and I want to assign the output ($10 and $5) from awk to N and L:
grdinfo data.grd | awk '{print $10,$5}'| read N L
output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
LEARN ABOUT OSX
lassign
lassign(n) Tcl Built-In Commands lassign(n)
__________________________________________________________________________________________________________________________________________________NAME
lassign - Assign list elements to variables
SYNOPSIS
lassign list varName ?varName ...?
_________________________________________________________________DESCRIPTION
This command treats the value list as a list and assigns successive elements from that list to the variables given by the varName arguments
in order. If there are more variable names than list elements, the remaining variables are set to the empty string. If there are more
list elements than variables, a list of unassigned elements is returned.
EXAMPLES
An illustration of how multiple assignment works, and what happens when there are either too few or too many elements.
lassign {a b c} x y z ;# Empty return
puts $x ;# Prints "a"
puts $y ;# Prints "b"
puts $z ;# Prints "c"
lassign {d e} x y z ;# Empty return
puts $x ;# Prints "d"
puts $y ;# Prints "e"
puts $z ;# Prints ""
lassign {f g h i} x y ;# Returns "h i"
puts $x ;# Prints "f"
puts $y ;# Prints "g"
The lassign command has other uses. It can be used to create the analogue of the "shift" command in many shell languages like this:
set ::argv [lassign $::argv argumentToReadOff]
SEE ALSO
lindex(n), list(n), lset(n), set(n)
KEYWORDS
assign, element, list, multiple, set, variable
Tcl 8.5 lassign(n)