06-10-2008
Problems with "IF" statement
Hi,
I am facing a strange problem when i use "if" statement in my shell script.
When i run this script , i get the following error -
***********************
$ sh test.ksh
: command not found
CX is 3 characters in length
CX = CR
: command not found
test.ksh: line 13: syntax error near unexpected token `fi'
test.ksh: line 13: `fi'
***********************
The following is the script i use -
***********************
#!/bin/ksh
CX="CR"
echo CX is ${#CX} characters in length
echo CX = $CX
if [[ $CX != "CP" ]]; then
echo "not equal"
fi
if [ $CX != "CP" ]; then
echo "not equal"
fi
***********************
the IF loop is not working fine here. [i hope the syntax is correct for it]
interestingly , string CX is 2 chars in length , but the output shows that it is 3 chars in length. Not sure why it happens.
Following is the information abt the Unix version i am using :
$ uname -a
Linux inafplxquas11 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 athlon i386 GNU/Linux
Can anyone help in resolving this
Thanks,
Arun
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies
2. Red Hat
Dear experts,
I'm trying to write a script to calculate the usage of Log Archive in a directory, so if it gets to a point where the directory size is 60%, then send out an FYI.. email. So if then it reaches to 80%, move the logs from that directory.
I have written the script as follow but... (10 Replies)
Discussion started by: Afi_Linux
10 Replies
3. Shell Programming and Scripting
Hi
I am trying to figure out what the following line does, I work in ksh88:
] && LIST="$big $LIST"
Not sure what "-a" means in that case.
Thanks a lot for any advice -A (1 Reply)
Discussion started by: aoussenko
1 Replies
4. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
5. UNIX for Dummies Questions & Answers
Hi Guys,
I'm sorry but I can't find answer for this, what is the meaning of -s option in "if" statement on unix scipting. Please see sample below:
opath=/home/output
for i in N1 N2 N3 N4
do
echo $i
if
then
grep $i $opath/N5_CRAI > $opath/N5_$i.crai
chmod 777 $opath/N5_$i.crai
... (7 Replies)
Discussion started by: rymnd_12345
7 Replies
6. Shell Programming and Scripting
Hello,
I am somewhat new to Linux/Unix. I am currently working on a shell script that is suppose to cat a file, grep the same file for a certain line, if that line is found save the file in a different location, else remove the file.
This is a rough example of what I want.
$Dating = False... (13 Replies)
Discussion started by: Amzerik
13 Replies
7. Shell Programming and Scripting
Hello,
I am using VirtualBox to simulate a small network with two Linux computers, the host is Mac OS X. My problem is that I can't send "write" and "wall" messages from the host to one of those Linux computers.
Here is what works:
- The virtual Linux computer answers "ping" messages that have... (5 Replies)
Discussion started by: 123_abc
5 Replies
8. UNIX for Dummies Questions & Answers
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
9. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)
NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS
-n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)
NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.10 3 Aug 1994 echo(1B)