7 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
i would like to insert a if-then-else function in to cycle for
--------------
cat test
--------------
# cat test
ALFA
BETA
GAMMA
-----------------------
This is my script:
#!/bin/bash
for i in $(cat test); if ; then
echo "ok"
else (5 Replies)
Discussion started by: elilmal
5 Replies
2. Shell Programming and Scripting
i have a question how to modify below script to generate the expect result below :
test.sh
#!/bin/bash
for ((i=0; i < 25; i++))
do
echo $1$i
done
current result:
test.sh 20090101
200901010
200901011
200901012
200901013
200901014
200901015
200901016
200901017
200901018 (2 Replies)
Discussion started by: bleach8578
2 Replies
3. Shell Programming and Scripting
Hello,
I have a question:
is there a way to have a "for" cycle done a certain number of times. For example in c++ I can do this:
for (i=o;i<10;i++)
and the cycle will be repeated 10 times.
in UNIX for example I do this:
for i in `cat /etc/host` do done
and the cycle will be repeated... (6 Replies)
Discussion started by: jcpetela
6 Replies
4. Shell Programming and Scripting
hello everybody,
I need help on putting a wildcard match inside an if condition (I'm using korn shell):
if ]
then echo ' '
echo ''$MYSEL' is not a correct option'
echo ' '
else .....
i tried also #if -ne "``" and a lot of combinations of `"' but I didn't find the... (2 Replies)
Discussion started by: elionba82
2 Replies
5. Shell Programming and Scripting
Hello,
I have files in a dir.
I what to create a FOR cycle that will do this
FOR <condition> do
file=`ls <directory> | tail -1`
echo $file
mv -f $file <another dir>
done
What I want to now is what should I put in the <condition>. The condition I want is that the FOR will execute... (3 Replies)
Discussion started by: nagomes
3 Replies
6. Shell Programming and Scripting
Hi
Is it possible to stop a command executing after certain time?
I have this command say prstat which keeps on giving the values etc of the processes after every 1 sec(refreshes the screen)
What I want is just stop the execution after first screen
Since I have written this command in shell... (3 Replies)
Discussion started by: superprg
3 Replies
7. Shell Programming and Scripting
Hello
I got a cycle in the script which open another scripts.
if
then
action
fi
Scripts action will be running 2 times at the same time.
Inside of action() is insert into the table.
But what I want is that only first script can do insert into table.
So how to do... (2 Replies)
Discussion started by: mape
2 Replies
ACYCLIC(1) General Commands Manual ACYCLIC(1)
NAME
acyclic - make directed graph acyclic
SYNOPSIS
acyclic [ -nv? ] [ -o outfile ] [ file ]
DESCRIPTION
acyclic is a filter that takes a directed graph as input and outputs a copy of the graph with sufficient edges reversed to make the graph
acyclic. The reversed edge inherits all of the attributes of the original edge. The optional file argument specifies where the the input
graph is stored; by default, the program reads from stdin.
OPTIONS
The following options are supported:
-n No output is produced, though the return value will indicate whether the graph is acyclic or not.
-v Print information about whether the file is acyclic, has a cycle or is undirected.
-o outfile
causes the output to be written to the specified file; by default, output is written to stdout.
-? option causes the program to print usage information.
RETURN CODES
acyclic returns 0 if the graph is acyclic; 1 if the graph has a cycle; 2 if the graph is undirected; and 255 if there are any errors.
BUGS
If the graph is strict and there is a cycle of length 2, the attributes of the reversed edge are lost.
Some edge attributes are non-symmetric, referring to either the head or tail node. At present, there is no mechanism or convention for cor-
rectly switching or renaming these.
AUTHORS
Stephen C. North <north@research.att.com>
Emden R. Gansner <erg@research.att.com>
SEE ALSO
gc(1), dot(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1), libgraph(3)
21 March 2001 ACYCLIC(1)