Saying, I have two distinct functions with the same goal (counting lines containing a specific pattern in a file MyFile).
To perform that operation, I used a "while loop" with two different syntax ("grep" command would be much more better in that case but this is not the concern in our case) !:
(1) cat MyFile | while read -r line;do; ... ;done;
(2) while read -r line; do; ...;done < MyFile;
Inside the while loop, I used a variable var to store the result.
My questions:
(1) is that the expected behaviour to not be able to get the value of var outside the while for the first syntax ?
(2) what kind of system's difference between both syntax ?
okay, this shouldn't be difficult but I can't figure it out. How can I set a variable with another variable. I have the following:
foreach pe ($dir $sp)
set tpe = `echo $pe | grep M`
if ($tpe == M) then
set ${$pe} = M <--- This doesn't work
else
endif
end
In this case what... (2 Replies)
#!/bin/sh
APP_ROOT_MODE1=/opt/app1.0
APP_ROOT_MODE2=/opt/app2.0
APP_ROOT=${APP_ROOT_${APP_MODE}}
# enviornment variable APP_MODE will be exported in the terminal where
# we run the applciation, its value is string - MODE1 or MODE2
# My intension is:
# when export APP_MODE=MODE1... (4 Replies)
I am writing a script to cross check the dbscript. For that I am searching the SQL manipulators in the dbscript as shown below. But my problem is the variable $pattern is coming as null when comes out of the foreach loop.
File content:
=========
vi /home2/niroj_p/dbscript.sql
-------... (1 Reply)
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)
Hi,
I am trying to do the following thing
var='date'
$var
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
unique_host_pro="sed -e ' /#/d'... (3 Replies)
Simple enough problem I think, I just can't seem to get it right.
The below doesn't work as intended, it's just a function defined in a much larger script:
CheckValues() {
for field in \
Group_ID \
Group_Title \
Rule_ID \
Rule_Severity \
... (2 Replies)
Hi,
I have Below script which converts csv file to html succesfully.but the visiblity is simple in black n white. I want to have better visibilty of each columns in different colours(like green).As it is a Database report suppose some tablespace available space is less than 20% then it should... (7 Replies)
Does anyone know if it is possible to check whether a window in x11 (using xlib) is visible or not? I tried XGetWindowProperty, but that doesn't work, because the windows host (dtwm on Solaris 10) does not support EWMH. (5 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 OPENSOLARIS
pid
pid(1T) Tcl Built-In Commands pid(1T)__________________________________________________________________________________________________________________________________________________NAME
pid - Retrieve process identifiers
SYNOPSIS
pid ?fileId?
_________________________________________________________________DESCRIPTION
If the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid
command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be
empty if fileId refers to an open file that isn't a process pipeline. If no fileId argument is given then pid returns the process identi-
fier of the current process. All process identifiers are returned as decimal strings.
EXAMPLE
Print process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline:
set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"]
# Print process information
exec ps -fp [pid $pipeline] >@stdout
# Print a separator and then the output of the pipeline
puts [string repeat - 70]
puts [read $pipeline]
close $pipeline
SEE ALSO exec(1T), open(1T)KEYWORDS
file, pipeline, process identifier
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 7.0 pid(1T)