01-17-2013
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I am getting different output for grep depending which directory I am in.
The following is a transcript of my session, I am using egrep but have also used grep -E. The directory names have been changed for security:
$pwd
/dir1/dir2/dir3/dir4
$echo 000000 |egrep -v
$echo $?
1
$cd ..... (10 Replies)
Discussion started by: Bab00shka
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2. Shell Programming and Scripting
I had a similar script in solaris and it had no problem. I wrote this one in freeBSD and it gave me strange output. Can anyone please tell me why? thanks a lot
#!/bin/sh
#This is a shell script that checks file system capacity mounted on /home directory
#If file system is over 90% capacity,... (1 Reply)
Discussion started by: k2k
1 Replies
3. Shell Programming and Scripting
Hi Experts,
I am adding a column of numbers with awk , however not getting correct output:
# awk '{sum+=$1} END {print sum}' datafile
2.15291e+06
How can I getthe output like : 2152910
Thank you..
# awk '{sum+=$1} END {print sum}' datafile
2.15079e+06 (3 Replies)
Discussion started by: rveri
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4. Solaris
Hi all,
After deleting some large log files on solaris 9 machine I can see strange df output shows below
/dev/vx/dsk/rootvol 45G 16384E 50G 39879076698694% /
I thought it will back to normal once I restart it but did not. I have seen in sunsolve article 6362734 that "Solaris 8... (0 Replies)
Discussion started by: rajashekar333
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5. Shell Programming and Scripting
Hi,
I using tcl script to perform certain conditions. Part of the results should have average . I couldn't figure out what 's the cause as the result of the average is Zero.
Example of the case????
#!/usr/bin/tclsh
set counter 500
set total 1000
puts "Total num: $total \n"
puts ... (3 Replies)
Discussion started by: ENG_MOHD
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6. UNIX for Advanced & Expert Users
Can someone please explain why I get two outputs with the du command? The first one gave me one. I also didn't ask for the second directory so why did it give that directory?
$ du -h "/media/Part 1/Desktop/playlist"
775M /media/Part 1/Desktop/playlist
$ du -h "/media/Part... (1 Reply)
Discussion started by: cokedude
1 Replies
7. Shell Programming and Scripting
Hi All,
I am in middle of one script. I want output in the form of xls file.
There are 4 fields - user name, email Id, full name, date of birth. I want these details to get in seperate columns.
But, i am getting it in the single cell and as like a paragraph.:mad:
Please suggest me some... (8 Replies)
Discussion started by: Agupte
8 Replies
8. Shell Programming and Scripting
How can I prevent find from outputting the directory name /home/xxxxxxxx/Backup/.system (which isn't even "other writable"?
I am trying to search for files that are "world writable" on a shared web host using the find statement, and I want to prevent find from creating an error (because the of... (4 Replies)
Discussion started by: nixie
4 Replies
9. UNIX for Dummies Questions & Answers
Hi all !
I noticed something very weird.
I have a large pipe delimited file (20 fields/3,000 records) that looks like that:
AAA|BBB|11111|22222|...|($NF of record 1)
CCC|DDD|33333|44444|...|($NF of record 2)
CCC|DDD|55555|66666|...|($NF of record 3)
For the lines with same 1st and 2nd... (3 Replies)
Discussion started by: beca123456
3 Replies
10. Programming
Hi All,
I am having a strange issue. Below is the code snippet. If I print fraction * (double)::pow((double)10,scalingFactor) which is a double I am getting 154 when I type cast that to int as (int)( ((fraction) * ((double)::pow((double)10,scalingFactor)))) it is becoming 153. Not sure why... (0 Replies)
Discussion started by: arunkumar_mca
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for(n) Tcl Built-In Commands for(n)
__________________________________________________________________________________________________________________________________________________
NAME
for - 'For' loop
SYNOPSIS
for start test next body
_________________________________________________________________
DESCRIPTION
For is a looping command, similar in structure to the C for statement. The start, next, and body arguments must be Tcl command strings,
and test is an expression string. The for command first invokes the Tcl interpreter to execute start. Then it repeatedly evaluates test
as an expression; if the result is non-zero it invokes the Tcl interpreter on body, then invokes the Tcl interpreter on next, then repeats
the loop. The command terminates when test evaluates to 0. If a continue command is invoked within body then any remaining commands in
the current execution of body are skipped; processing continues by invoking the Tcl interpreter on next, then evaluating test, and so on.
If a break command is invoked within body or next, then the for command will return immediately. The operation of break and continue are
similar to the corresponding statements in C. For returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the for command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. See below for an example:
EXAMPLES
Print a line for each of the integers from 0 to 10:
for {set x 0} {$x<10} {incr x} {
puts "x is $x"
}
Either loop infinitely or not at all because the expression being evaluated is actually the constant, or even generate an error! The
actual behaviour will depend on whether the variable x exists before the for command is run and whether its value is a value that is less
than or greater than/equal to ten, and this is because the expression will be substituted before the for command is executed.
for {set x 0} $x<10 {incr x} {
puts "x is $x"
}
Print out the powers of two from 1 to 1024:
for {set x 1} {$x<=1024} {set x [expr {$x * 2}]} {
puts "x is $x"
}
SEE ALSO
break, continue, foreach, while
KEYWORDS
for, iteration, looping
Tcl for(n)