What you dont notice is a newline character at the end of each line. Do a
and see. Similarly try
To avoid a newline at the end of echo, check this
Hope that helps
I'm an intern at a company that recently bought out another business. In doing so, they inherited a unix system that contains files which they need to retrieve. No one in the company, including myself, really understands or knows unix so please respond with the true assumption that I'm a unix... (1 Reply)
Good day, everyone!
Could anybody explain me the following situation.
If I'm running similar script:
Var="anna.kurnikova"
Var2="Anna Kurn"
echo $Var | tr -t "$Var" "$Var2"
Why the output is :
anna KurniKova
instead of Anna Kurnikova?
:confused:
Thank you in advance for any... (2 Replies)
When i run this command on my linux machine:
mail -s "CVS ALERT-CRITCAL" sandy@xyz.com
The system hangs up producing a dead letter. What should i do to resolve this.
I am using :
mailx -s "CVS ALERT-CRITCAL" sandy@xyz.com
This cammnd works fine on another Linux machine but says"... (14 Replies)
I have printer old about 5 year , but I can not determine which driver to use
output of
ls -al /usr/share/lib/terminfo/h
-rw-r--r-- 1 root bin 961 Jan 22 2005 h1000
-rw-r--r-- 1 root bin 1002 Jan 22 2005 h1420
-rw-r--r-- 1 root bin 1009... (2 Replies)
Hello, I hope all is well.
Two issues that I am grappling with.
One: Is this a true statement: (AIX, LDAP configured), even if authentication is configured with LDAP, the system would still need to be authenticated against local (/etc/passwd); incase of network failure?
Two: I can log... (0 Replies)
Hi All,
I have just installed my first Linux server ( Ubuntu 11.10 ).
I am sure I didn't allocate /swap , and double check by 'df -h', yes really no /swap
but when I use 'free -m' , returned a "Swap" line as below.
total used free shared buffers cached
Mem: ... (3 Replies)
Hello All,
I have a problem in counting number of process getting run with my current script name..
Here it is
ps -ef | grep $0 | grep -v grep
This display just one line with the PID, PPID and other details when i print it in the script.
But when I want to count the numbers in my... (11 Replies)
hi
i am new to shell scripting.
i was going thru the part option and arguments. on this section i fail to understand the use of exit 0 in below example .
#!/bin/sh
USAGE="Usage: $0 "
case "$1" in
-t) TARGS="-tvf $2" ;;
-c) TARGS="-cvf $2.tar $2" ;;
*) echo "$USAGE"
exit 0
;;
esac... (13 Replies)
HI, guys, I am having some problem with the echo command, so I want to echo some text to a file name loginFile, the result inside the loginFile should looks like:
expect ">"
so what I did is:
echo "expect "">""" >> $loginFile
but it just gave out:
expect >
The thing is I still need... (2 Replies)
Hi folks,
If a declare a direct hash , then the hash element works fine.
my %test = ("test",1);
print %test;
print "\n";
Here in the above, the name of the hash is predeclared...
Suppose now I need to create the hash elements dynamically in the for loop.
$test="hash";
my... (1 Reply)
Discussion started by: scriptscript
1 Replies
LEARN ABOUT SUNOS
uniq
uniq(1) User Commands uniq(1)NAME
uniq - report or filter out repeated lines in a file
SYNOPSIS
uniq [-c | -d | -u] [-f fields] [-s char] [ input_file [output_file]]
uniq [-c | -d | -u] [-n] [ + m] [ input_file [output_file]]
DESCRIPTION
The uniq utility will read an input file comparing adjacent lines, and write one copy of each input line on the output. The second and suc-
ceeding copies of repeated adjacent input lines will not be written.
Repeated lines in the input will not be detected if they are not adjacent.
OPTIONS
The following options are supported:
-c Precedes each output line with a count of the number of times the line occurred in the input.
-d Suppresses the writing of lines that are not repeated in the input.
-f fields Ignores the first fields fields on each input line when doing comparisons, where fields is a positive decimal integer. A
field is the maximal string matched by the basic regular expression:
[[:blank:]]*[^[:blank:]]*
If fields specifies more fields than appear on an input line, a null string will be used for comparison.
-s chars Ignores the first chars characters when doing comparisons, where chars is a positive decimal integer. If specified in con-
junction with the -f option, the first chars characters after the first fields fields will be ignored. If chars specifies
more characters than remain on an input line, a null string will be used for comparison.
-u Suppresses the writing of lines that are repeated in the input.
-n Equivalent to -f fields with fields set to n.
+m Equivalent to -s chars with chars set to m.
OPERANDS
The following operands are supported:
input_file A path name of the input file. If input_file is not specified, or if the input_file is -, the standard input will be used.
output_file A path name of the output file. If output_file is not specified, the standard output will be used. The results are unspeci-
fied if the file named by output_file is the file named by input_file.
EXAMPLES
Example 1: Using the uniq command
The following example lists the contents of the uniq.test file and outputs a copy of the repeated lines.
example% cat uniq.test
This is a test.
This is a test.
TEST.
Computer.
TEST.
TEST.
Software.
example% uniq -d uniq.test
This is a test.
TEST.
example%
The next example outputs just those lines that are not repeated in the uniq.test file.
example% uniq -u uniq.test
TEST.
Computer.
Software.
example%
The last example outputs a report with each line preceded by a count of the number of times each line occurred in the file:
example% uniq -c uniq.test
2 This is a test.
1 TEST.
1 Computer.
2 TEST.
1 Software.
example%
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of uniq: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>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 comm(1), pack(1), pcat(1), sort(1), uncompress(1), attributes(5), environ(5), standards(5)SunOS 5.10 20 Dec 1996 uniq(1)