9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi everyone,
Is it possible to define blank vaianbles and prompt user to fill them during the script execution?
A very simple example:
INPUT=
OUTPUT=
cut -f1-4 $INPUT | sed 's/hello/goodbye/g' | sort -uV > $OUTPUTThank you in advance!
Best wishes (2 Replies)
Discussion started by: lsantome
2 Replies
2. Shell Programming and Scripting
HI
I have file A.txt
_1A
_2A
_3A
_4A
I want define all as different variable.
$1A=_1A
$2B=_2A
$3C=_3A
$4D=_4A
Now i can use any variable in my script. (3 Replies)
Discussion started by: pareshkp
3 Replies
3. Shell Programming and Scripting
Hi,
Is it possible in perl to have a hash defined with variables as theirs key values, like:
%account = ('username' => 'boy', 'password' => $password);
Thanks (1 Reply)
Discussion started by: zing_foru
1 Replies
4. Shell Programming and Scripting
Hi, Unix Gurus,
In our existing file, there is a script like
#!/bin/sh
step=${1:-0}
cur_step=10
if
...
My question is what's "${1:-0}" mean? I know it defines a variable but I don't know what's (1:-0) mean?
:wall:
Thanks in advance. (2 Replies)
Discussion started by: ken002
2 Replies
5. Shell Programming and Scripting
Hello,
I would like to define a variable based on another variable:
a=5
b$a=100
This does not work. What is the right way to do it?
Thanks
---------- Post updated at 07:37 PM ---------- Previous update was at 07:33 PM ----------
Found my answer with the search function (did not... (0 Replies)
Discussion started by: jolecanard
0 Replies
6. Shell Programming and Scripting
I have a list of markers, say marker.txt:
rs913257
rs1018390
rs764180
and I need to know which ROW that each marker appears in another map file, say map.txt:
a rs12354060
b rs913257
c rs6650104
d rs2185539
e rs6681105
f rs1018390
g rs764180
h rs12564807
i rs3094315
The result... (4 Replies)
Discussion started by: Zoho
4 Replies
7. Shell Programming and Scripting
Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
name=fred
age=25
address="123 abc"
password=pass1234
how can I make the variable $name, $age, $address and $password contain the info?
I mean do this in a... (1 Reply)
Discussion started by: freddy1228
1 Replies
8. UNIX for Dummies Questions & Answers
I have a variable with a value of "05". When I add one to that variable, using the command: CURR_YY=`expr $CURR_YY + 1`, I get the value of "6", losing the leading zero (which is needed for passing to another script). How do I keep the leading zero?
Thank you! (10 Replies)
Discussion started by: cbarker
10 Replies
9. UNIX for Dummies Questions & Answers
I am using korn shell unix.
I have a script that I am working with to do a check for me using a text file.
#finds "Time" from the text file and cuts the second field from the #line
A= grep Time test.txt | cut -f2
# the "#Missing" is being pulled from the second field of the text... (1 Reply)
Discussion started by: cspcspcsp
1 Replies
break(3tcl) Tcl Built-In Commands break(3tcl)
__________________________________________________________________________________________________________________________________________________
NAME
break - Abort looping command
SYNOPSIS
break
_________________________________________________________________
DESCRIPTION
This command is typically invoked inside the body of a looping command such as for or foreach or while. It returns a TCL_BREAK code, which
causes a break exception to occur. The exception causes the current script to be aborted out to the innermost containing loop command,
which then aborts its execution and returns normally. Break exceptions are also handled in a few other situations, such as the catch com-
mand, Tk event bindings, and the outermost scripts of procedure bodies.
EXAMPLE
Print a line for each of the integers from 0 to 5:
for {set x 0} {$x<10} {incr x} {
if {$x > 5} {
break
}
puts "x is $x"
}
SEE ALSO
catch(3tcl), continue(3tcl), for(3tcl), foreach(3tcl), return(3tcl), while(3tcl)
KEYWORDS
abort, break, loop
Tcl break(3tcl)