This is bash-only. t234 is an array, first element is t234[0] to be referenced as ${t234[0]}
The indices 0 1 2 0 1 2 ... are achieved by i%3 (modulo 3)
Last edited by MadeInGermany; 11-15-2013 at 05:49 PM..
Reason: Just seeing col1 increments with i/3 not i
I was wondering how I can modify this for loop, so it only loops through the filenames that do not have an ".old" extension.
for filename in $(ls "$1")
do
echo $filename | grep '\.old$' > /dev/null
if
then mv $1/$filename $1/$filename.old
fi
done (5 Replies)
Hi,
Following is my code and the file FILE_LIST_EXCESS.txt has 40 file names in it
while read LineIn
do
echo ${LineIn}
`ftp -vin << END_INPUT >> ${PID}_DS_GET_Log.log 2>&1
open servername
user userid password
cd FileDir
get ${LineIn}
END_INPUT`... (4 Replies)
I have 2 files one of them has all the all mac addresses and the other one has all the ip addresses. Basically, I want to loop thru those 2 files and generate a configuration like below:
host www184.domain.com {
hardware ethernet 00:13:72:3B:B4:3A;
fixed-address 192.168.0.184;
}... (4 Replies)
function ext
{
echo "THANKS & WELCOME BACK"
}
function upc
{
echo "TO EXPORT UPROC GIVE UPROC NAME PER LINE IN THE input.txt and PRESS Y"
echo "TO GO BACK PRESS 99"
read parm0
if ;
then
start
elif ;
then
for i in `cat input.txt` ; do
echo $i
$UXEXE/uxext upr upr=$i... (0 Replies)
Hi, my script is waiting for 3 files to come to a folder for 30 min but even when all the files arrive in the folder it's still waiting for these three files. Files can come with in 2 min and I want it to start processing them immediately after all the files arrive in the folder.
until ; do... (3 Replies)
sup experts..i had a script which was bugging me..was hoping someone could point out the issue here
Input file: space separated 2 columns
I wanted to print out the 2 columns after assigning them to variables ( bascially the same output but iterate through line by line ). The code worked... (7 Replies)
Hi,
I am trying to move a file from remote server to local server and when the transfer completes successfully i call a script in remote server to remove the file which was successfully transferred.
I do this by first getting the list of file in remote server and move the text file to local... (8 Replies)
Hi,
I have prepared a script to search for backup file information on the Linux server. Script works fine for the most part except the echo statement inside an IF conditional block displays the message ''snapshot directory not found on xxxxx" even though the .snapshot directory is found a... (11 Replies)
Hi Team,
I have for loop in my shell script. Which basically loop through all files in the directory, When some files are in the directory it works just fine.
But if there are no files at all..still the for loop try to execute. Please help. Below is the code.
#!/bin/ksh
echo "Program... (5 Replies)
Hi,
I just have started learning shell scripting (sh). Why do i only get the date?
while read dt
do
echo "Date : ${dt}
sed -n '/${dt}/,/${dt}/p' file1.log | grep -w ERROR
done < date1.dat
INPUT - date1.dat
2019-04-05 04:58:25
2019-04-05 04:58:26
2019-04-05 05:00:56... (3 Replies)
Discussion started by: margel
3 Replies
LEARN ABOUT ULTRIX
expr
expr(1) General Commands Manual expr(1)Name
expr - evaluate expressions
Syntax
expr arg...
Description
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr Yields the first expr if it is neither null nor 0. Otherwise yields the second expr.
expr & expr Yields the first expr if neither expr is null or 0. Otherwise yields 0.
expr relop expr The relop is one of < <= = != >= > and yields 1 if the indicated comparison is true, '0' if false. The comparison is
numeric if both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
Yields addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
Yields multiplication, division, or remainder of the arguments.
expr : expr The matching operator compares the string first argument with the regular expression second argument; regular expres-
sion syntax is the same as that of The (...) pattern symbols can be used to select a portion of the first argument.
Otherwise, the matching operator yields the number of characters matched ('0' on failure).
( expr ) parentheses for grouping.
Examples
The first example adds 1 to the Shell variable a:
a=`expr $a + 1`
The second example finds the file name part (least significant part) of the pathname stored in variable a,
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
Diagnostics
The command returns the following exit codes:
0 The expression is neither null nor '0'.
1 The expression is null or '0'.
2 The expression is invalid.
See Alsoed(1), sh(1), test(1)expr(1)