01-05-2011
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have no idea why I can't get this to work, if anybody can help i would appreciate it.
#!/bin/bash
x=`cat counter.txt | wc -l`
y= '$x / 7'
printf "%d People have visited this page" $y
:confused: (2 Replies)
Discussion started by: paladyn_2002
2 Replies
2. Shell Programming and Scripting
I am using egrep to extract numbers from a file and storing them as variables in a script. But I am not able to do any arithmetic operations on the variables using "expr" because it stores them as char and not integers. Here is my code and the error I get. Any help will be appreciated.
#!/bin/sh... (3 Replies)
Discussion started by: emjayshaikh
3 Replies
3. UNIX for Dummies Questions & Answers
Hi, All,
I have a file, its content is as follows:
100 150
120 135
140 170
I want to insert a column, its content is determined by the difference between the two values in the same line, if the difference is less than 20, the new value is 1, otherwise is 0.
after the operation, the... (1 Reply)
Discussion started by: Jenny.palmy
1 Replies
4. Shell Programming and Scripting
Hi all,
I would appreciate if anyone knows how to perform adding to date.
As for normal date, i can easily plus with any number.
But when it comes to month end say for example 28 Jun, i need to perform a plus with number 3, it will not return 1 Jul.
Thanks in advance for your help. (4 Replies)
Discussion started by: agathaeleanor
4 Replies
5. Shell Programming and Scripting
I have output like following in a file
usmtnz-dinfsi19
72
71
38
1199
1199
0.8
19:23:58
usmtnz-dinfsi19
72
71
38
1199
1199
0.8
19:24:04 (9 Replies)
Discussion started by: fugitive
9 Replies
6. Shell Programming and Scripting
I am writing a script in zsh shell, it fetchs a number from a file using the awk command, store it as a variable, which in my case is a small number 0.62000. I want to change this number by multiplying it by 1000 to become 620.0 using the command in the script
var2=$((var1*1000))
trouble is... (2 Replies)
Discussion started by: piynik
2 Replies
7. UNIX for Dummies Questions & Answers
input:
Name|Operation
rec_10|1+2+2-
Output:
rec_10|1
Basically I am trying to calculate the result of "the path" in $3 where the operators follow the number and not preceding them like we normally do:
rec_10: +1+2-2=1
But I realise (I am sure there is a good reason for that) that awk... (7 Replies)
Discussion started by: beca123456
7 Replies
8. Shell Programming and Scripting
Hi,
Here is the script i try to perform arithmetic operation in two variables .
git branch -r | while read brname ; do
REV_COMMITS=`git rev-list --count $brname`
echo "$brname has $REV_COMMITS"
(( TOTAL = TOTAL + REV_COMMITS ))
echo "in loop" $TOTAL
done
echo "total is " $TOTAL
... (3 Replies)
Discussion started by: greet_sed
3 Replies
9. Shell Programming and Scripting
Hi,
I've this following text file
FileVersion = 1.03
Filetype = meteo_on_curvilinear_grid
TIME = 0 hours since 2016-10-03 12:00:00 +00:00
-6.855 -6.828 -6.801 -6.774 -6.747 -6.719 -6.691 -6.663 -6.634 -6.606 -6.577 -6.548 -6.519 -6.489
TIME = 0 hours since... (2 Replies)
Discussion started by: xisan
2 Replies
10. How to Post in the The UNIX and Linux Forums
I have to do some arithmetic operation on Field 8 which is calculated by Field 9/Field 7
Suppose i have data like :
0800123456|JAN|2017|JAN|2018|0800123456|0|0.0000|0.00|
0800234567|JAN|2017|JAN|2018|0800234567|4|2.5812|10.32|
0800666666|JAN|2017|JAN|2018|0800666666|2|1.7255|3.45|... (0 Replies)
Discussion started by: pumrao
0 Replies
TABS(1) BSD General Commands Manual TABS(1)
NAME
tabs -- set terminal tabs
SYNOPSIS
tabs [-n | -a | -a2 | -c | -c2 | -c3 | -f | -p | -s | -u] [+m[n]] [-T type]
tabs [-T type] [+[n]] n1[,n2,...]
DESCRIPTION
The tabs utility displays a series of characters that clear the hardware terminal tab settings then initialises tab stops at specified posi-
tions, and optionally adjusts the margin.
In the first synopsis form, the tab stops set depend on the command line options used, and may be one of the predefined formats or at regular
intervals.
In the second synopsis form, tab stops are set at positions n1, n2, etc. If a position is preceded by a '+', it is relative to the previous
position set. No more than 20 positions may be specified.
If no tab stops are specified, the ``standard'' UNIX tab width of 8 is used.
The options are as follows:
-n Set a tab stop every n columns. If n is 0, the tab stops are cleared but no new ones are set.
-a Assembler format (columns 1, 10, 16, 36, 72).
-a2 Assembler format (columns 1, 10, 16, 40, 72).
-c COBOL normal format (columns 1, 8, 12, 16, 20, 55)
-c2 COBOL compact format (columns 1, 6, 10, 14, 49)
-c3 COBOL compact format (columns 1, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 67).
-f FORTRAN format (columns 1, 7, 11, 15, 19, 23).
-p PL/1 format (columns 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61).
-s SNOBOL format (columns 1, 10, 55).
-u Assembler format (columns 1, 12, 20, 44).
+m[n], +[n]
Set an n character left margin, or 10 if n is omitted.
-T type
Output escape sequence for the terminal type type.
ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and TERM environment variables affect the execution of tabs as described in environ(7).
The -T option overrides the setting of the TERM environment variable. If neither TERM nor the -T option are present, tabs will fail.
EXIT STATUS
The tabs utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
expand(1), stty(1), tput(1), unexpand(1), termcap(5)
STANDARDS
The tabs utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A tabs utility appeared in PWB UNIX. This implementation was introduced in FreeBSD 5.0.
BUGS
The current termcap(5) database does not define the 'ML' (set left soft margin) capability for any terminals.
BSD
May 20, 2002 BSD