02-21-2007
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
If I have a variable $X, how do I check it is a number?
Many thanks. (2 Replies)
Discussion started by: handak9
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2. Shell Programming and Scripting
hi,
I have a variable var1 as follows in the script.
var1="one two three desformat=PDF xyz"
I would like to check whether $var1 has a string "desformat=PDF" or not.
Is there any command I can use (not need to creat a file)?
Currently, I am using this:
if ( grep "desformat=PDF"... (1 Reply)
Discussion started by: josephwong
1 Replies
3. Shell Programming and Scripting
Logic of code
if ( $var is a number ) {
Do something
}
else {
Do something else
}
My question is: How do I check if a variable is a number. All the reg ex that I came up with to match this is failing. Please help. (3 Replies)
Discussion started by: garric
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4. UNIX for Advanced & Expert Users
hi
I have an if condition that states:
if ; then
exit
how to translate this?
$x is a path
$y is a string that comes at the end of the path
thx (11 Replies)
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5. Shell Programming and Scripting
Hi ,
I am facing a problem .. which looks simple... but took 2 days of mine.. even now it is not solved completely..
I have one variable..., want to know whether that variable contains number... canbe +ve or -ve ...
Values
+35 --- number
-43 --- number
45A -- non number... (12 Replies)
Discussion started by: shihabvk
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6. Shell Programming and Scripting
Hi,
Can anyone help me out to check whether the input argument is number?
Example:
REQUEST_ID="123456"
I need to check the REQUEST_ID value is number or string.
Thanks in Advance
Regards
BS (6 Replies)
Discussion started by: balajiora
6 Replies
7. UNIX for Dummies Questions & Answers
hi to all,
i want to check the value of a variable that it contains characters.
for example i try the following:
if then .........
i just want to check that in the specific line that is a variable called "passline" has the entry "password". But it can contain also other characters in the... (4 Replies)
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8. Shell Programming and Scripting
Hi guys, I am working on a server where there are many users. The user names end in a 1 or a 2. I want to write a bash script that will say which users are in which group and was wondering if I could get some help. The only part I am unsure of is how to check if it ends in the number.
Here's... (2 Replies)
Discussion started by: wua05
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9. Shell Programming and Scripting
Hey I'm new in linux,
I'm looking for a code to check whether the parameter is a number or a string.
I have already tried this code:
eerste=$(echo $1 | grep "^*$">aux)
if
But it doesn't work.:confused:
Thanks (2 Replies)
Discussion started by: Eclecticaa
2 Replies
10. UNIX for Beginners Questions & Answers
Below is my ksh shell script where I need to check if variable fileprops is a subset of $1 argument.
echo "FILE PROPERTY: $fileprops"
echo "PARAMETER3: $1"
if ; then
echo "We are Good. $line FILE is found to be INTACT !! "
else
echo... (2 Replies)
Discussion started by: mohtashims
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LEARN ABOUT CENTOS
gvmap.sh
GVMAP.SH(1) General Commands Manual GVMAP.SH(1)
NAME
gvmap.sh - pipeline for running gvmap
SYNOPSIS
gvmap.sh [-vV?] [ options ] [ -o outfile ] [ files ]
DESCRIPTION
gvmap.sh takes as input a graph in DOT format, performs a layout, runs the output through gvmap and renders the output. At some point, it
is hoped to integrate all of these tasks into gvmap.
OPTIONS
The following options are supported:
-a k The integer k specifies the average number of artificial points added along the bounding box of the labels. Such artificial points
are added to avoid a country boundary cutting through the boundary box of the labels. Computing time is proportional to k; hence,
for large graphs, a small value of k is suggested. If k = -1, a suitable value of k is automatically selected based on the graph
size. By default k = -1.
-K layout
specifies which program should be use for the initial layout. By default, sfdp is run. Also by default, the layout is passed the
flag -Goverlap=prism. This can be overridden using a -g flag.
-T format
specifies the final output format. This works the same way as the -T flag for any Graphviz layout program.
-N attr=val
specifies the setting of a default node attribute during the rendering phase. This works the same way as the -N flag for any
Graphviz layout program.
-G attr=val
specifies the setting of a graph attribute during the rendering phase. This works the same way as the -G flag for any Graphviz lay-
out program.
-E attr=val
specifies the setting of a default edge attribute during the rendering phase. This works the same way as the -E flag for any
Graphviz layout program.
-n attr=val
specifies the setting of a default node attribute during the layout phase. This works the same way as the -N flag for any Graphviz
layout program.
-g attr=val
specifies the setting of a graph attribute during the layout phase. This works the same way as the -G flag for any Graphviz layout
program.
-e attr=val
specifies the setting of a default edge attribute during the layout phase. This works the same way as the -E flag for any Graphviz
layout program.
-A flag
specifies a flag to be passed to gvmap. For example, gvmap.sh -Ae -As3 causes gvmap -e -s3 to be run.
-v Set verbose mode.
-V Print version information and exit.
-? Print usage information and exit.
EXAMPLES
The following invocation creates a map with edges in semi-transparent light gray and nodes laid out using sfdp:
gvmap.sh -Ae -Ecolor=#55555522 -Tpng foo.gv > foo.png
It is equivalent to running the pipeline
sfdp -Goverlap=prism foo.gv | gvmap -e | neato -n2 -Ecolor=#55555522 -Tpng > foo.png
AUTHOR
Emden R. Gansner <erg@research.att.com>
SEE ALSO
gvmap(1), sfdp(1), neato(1), gvpr(1)
E. R. Gansner, Y. Hu, S. G. Kobourov, "GMap: Visualizing graphs and clusters as maps," Proc. Pacific Vis. 2010, pp. 201-208.
31 March 2011 GVMAP.SH(1)