for cycle Post: 302288990

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1. Shell Programming and Scripting

shell cycle

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. Shell Programming and Scripting

For cycle

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. Shell Programming and Scripting

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4. Shell Programming and Scripting

for cycle question

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

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sed problem in a for cycle

Hi, i have a problem with a sed command runned in a for cycle... I have a file named fileX which contains (i have crippled the line to minimal for easy): load data dbfoo - TOCHANGE - comment load data dbboo - TOCHANGE - comment load data dbzoo - TOCHANGE - comment ... And a file...

6. Shell Programming and Scripting

Cycle for with for-then-else

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

7. UNIX for Beginners Questions & Answers

For cycle, process order

Hello, I am running a script under ubuntu 16.04 I have no problem with the script. My question is general algorithm of for file command. I just need to know how for file in *.txt process works. Let's say, I wish to run the script by sorting filename: for file in *.txt do "do something in...

LEARN ABOUT NETBSD

tsort

TSORT(1)						    BSD General Commands Manual 						  TSORT(1)

NAME

     tsort -- topological sort of a directed graph

SYNOPSIS

     tsort [-l] [-q] [file]

DESCRIPTION

     tsort takes a list of pairs of node names representing directed arcs in a graph and prints the nodes in topological order on standard output.
     Input is taken from the named file, or from standard input if no file is given.

     Node names in the input are separated by white space and there must be an even number of node names.

     Presence of a node in a graph can be represented by an arc from the node to itself.  This is useful when a node is not connected to any other
     nodes.

     If the graph contains a cycle (and therefore cannot be properly sorted), one of the arcs in the cycle is ignored and the sort continues.
     Cycles are reported on standard error.

     The options are as follows:

     -l      Search for and display the longest cycle.	Can take a very long time.

     -q      Do not display informational messages about cycles.  This is primarily intended for building libraries, where optimal ordering is not
	     critical, and cycles occur often.

SEE ALSO

     ar(1)

HISTORY

     A tsort command appeared in Version 7 AT&T UNIX.  This tsort command and manual page are derived from sources contributed to Berkeley by
     Michael Rendell of Memorial University of Newfoundland.

BSD
								   April 1, 1994							       BSD