Please forgive this I think rather basic question.
I have been away from UNIX for a very long time and am in need of some help.
I need to be able to check for the existance of a specific file name say 'file.dat' in a particular location
If the file exists then run a second process (at... (2 Replies)
#!/bin/sh
count=0
for i in 2 4 6
do
echo "i is $i"
count='expr $count + 1'
done
echo "The loop was executed $count times"
with these scripts
my output is :
i is 2
i is 4
i is 6
The loop was executed expr $count + 1 times
What should I do to get the value instead of 'expr... (17 Replies)
Hi Experts,
I have a code like this.
=====
#include....
int main()
{
int count = 0;
while(1){
printf("\n Interation number is: %d \n ",count);
rv = system(" test.sh > log.txt " );
if (-1 == rv)
{
printf("Could not generate static log: error... (12 Replies)
Is there any FASTEST way to loop a script 10k times
my script works likes this
c-randomnumbers-script -i input1.bed -g g19 -e DB >> output1
I need to run this 10k times by using consecutive outputs to get my final output i.e, output10000
c-random-script -i input1.bed -g g19 -e DB >>... (5 Replies)
Hi
Am trying to print the PIDs of process in a file and trying to grep any PID from that file
I set the if condition as $value != "PID" and $value != "-"
Assign that number to a variable
Am confused since am using while loop to read the line from file
and again if condition to check those... (2 Replies)
Hi Fellows,
I was wondering how I can remove first few characters from multiple file names without do loop in unix?
e.g.
water123.xyz
water456.xyz
to
123.xyz
456.xyz
Thanks
Paul
Thanks. (3 Replies)
hi, i am running a java script on few thousand files (e1.rnk....en.rnk) but manually,. is there any way to run it automatically by changing the output directory (-out) ?
thanx in advance
ex:
java -jar commands -res /path/e1.rnk -out /path/e1 -gui false
java -jar commands -res /path/e2.rnk... (1 Reply)
hdr=$(cut -c1 $path$file|head -1)#extract header”H”
trl=$(cut -c|path$file|tail -1)#extract trailer “T”
SplitFile=$(cut -c 50-250 $path 1$newfile |sed'$/ *$//' head -1')# to trim white space and extract table name
If; then # start loop if it is a header
While read I #read file
Do... (4 Replies)
After the successful start of server, it should check the status again, if it is not running ,it should go through the loop for 2 times.
Even after two times of execution if still the server is not running it should send an alert email. Please help (1 Reply)
hi,
I am using hp unix server and not getting variable output present inside the while loop. I have tried changing the code and need to verify whether it is proper practice of code. I am expecting the output of varible RUN_FILE 3 to TRUE which i get inside the while loop.
RUN_FILE 1=TRUE... (8 Replies)
Discussion started by: gowthamsoft
8 Replies
LEARN ABOUT OPENSOLARIS
comm
comm(1) User Commands comm(1)NAME
comm - select or reject lines common to two files
SYNOPSIS
comm [-123] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which must be ordered in the current collating sequence, and produces three text columns as output:
lines only in file1; lines only in file2; and lines in both files.
If the input files were ordered according to the collating sequence of the current locale, the lines written will be in the collating
sequence of the original lines. If not, the results are unspecified.
OPTIONS
The following options are supported:
-1 Suppresses the output column of lines unique to file1.
-2 Suppresses the output column of lines unique to file2.
-3 Suppresses the output column of lines duplicated in file1 and file2.
OPERANDS
The following operands are supported:
file1 A path name of the first file to be compared. If file1 is -, the standard input is used.
file2 A path name of the second file to be compared. If file2 is -, the standard input is used.
USAGE
See largefile(5) for the description of the behavior of comm when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
EXAMPLES
Example 1 Printing a list of utilities specified by files
If file1, file2, and file3 each contain a sorted list of utilities, the command
example% comm -23 file1 file2 | comm -23 - file3
prints a list of utilities in file1 not specified by either of the other files. The entry:
example% comm -12 file1 file2 | comm -12 - file3
prints a list of utilities specified by all three files. And the entry:
example% comm -12 file2 file3 | comm -23 -file1
prints a list of utilities specified by both file2 and file3, but not specified in file1.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of comm: LANG, LC_ALL, LC_COLLATE,
LC_CTYPE, LC_MESSAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 All input files were successfully output as specified.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO cmp(1), diff(1), sort(1), uniq(1), attributes(5), environ(5), largefile(5), standards(5)SunOS 5.11 3 Mar 2004 comm(1)