Sponsored Content
Top Forums Shell Programming and Scripting bash shell script string comparison Post 302311695 by bonosungho on Wednesday 29th of April 2009 10:21:15 AM
Old 04-29-2009
I am using if statement and I fixed it to
Code:
if [ `echo $line | cut -f 2 -d","`=="" ]
then
    echo ""
else
    echo $line
fi

but I get an error message below
[: ==: unary operator expected

can any one help me using if statement??
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem in ksh script ( String comparison )

hi , i am trying to compre two strings if ] or if ] when the length of var1 is small (around 300-400 char ) it works fine but when it is large (around 900-1000 chars) it fails is there any limitations for this type of comparison ??? (3 Replies)
Discussion started by: amarnath
3 Replies

2. AIX

Problem in ksh script ( String comparison )

hi , i am trying to compre two strings if ] or if ] when the length of var1 is small (around 300-400 char ) it works fine but when it is large (around 900-1000 chars) it fails is there any limitations for this type of comparison ??? (1 Reply)
Discussion started by: amarnath
1 Replies

3. Shell Programming and Scripting

problem in string comparison in shell programming

Hello, was just wondering how to compare strings in unix? I mean as in C there is a function strcmp() in string.h, is there any function in unix for that? I tried using if and all such variations but didn't succeed. Any help would be appreciated. Thanks in advance :) (9 Replies)
Discussion started by: salman4u
9 Replies

4. Shell Programming and Scripting

need help in writing a comparison shell script

I have a folder a1 with the following files sample_1.log sample_2.log sample_3.log sample_4.log sample_5.log sample_6.log In another folder there is a file b with the value 5 My script should take the value 5 ( file b), compare it with the files in folder a1, if file name contains... (1 Reply)
Discussion started by: Nagesh1
1 Replies

5. Homework & Coursework Questions

Date comparison with 'string date having slashes and time zone' in Bash only

1. The problem statement, all variables and given/known data: I have standard web server log file. It contains different columns (like IP address, request result code, request type etc) including a date column with the format . I have developed a log analysis command line utility that displays... (1 Reply)
Discussion started by: TariqYousaf
1 Replies

6. Solaris

String Comparison in Shell script

I Have a script which gets the status of oracle database and if the status is READ WRITE ..it should echo "db is up " else "db is down" Here is the code if then echo "db up" else echo "db down" fi done; The script is giving me out put "db down" even thoug the value of... (6 Replies)
Discussion started by: njafri
6 Replies

7. Shell Programming and Scripting

SPLIT STRING in bash shell script

i need one help.... if i have a string like aaaaa,bbbbb,ccccc,aaaaa How to to split the string and check howmany times aaaaa will be in that string? Thanks (7 Replies)
Discussion started by: karthinvk
7 Replies

8. Shell Programming and Scripting

String comparison using bash

I have a program to create a directory if not present. Here is the program. FYI: Directory name format: YYYY_MM_DD #!/bin/bash date=`date +%Y_%m_%d` presence=$(ls -lrt /TS_File/ | grep "$date" | awk '{print $9}') if then mkdir /TS_File/$date else echo "Unable to Create... (5 Replies)
Discussion started by: nthiruvenkatam
5 Replies

9. Shell Programming and Scripting

Bash shell script: Str(007) to int(7),increment it(8) & convert back to string(008)

Hi, I have the following requirement. There will be following text/line in a file (eg: search-build.txt) PRODUCT_VERSION="V:01.002.007.Build1234" I need to update the incremental build number (eg here 007) every time I give a build through script. I am able to search the string and get... (4 Replies)
Discussion started by: drwatson_droid
4 Replies

10. Shell Programming and Scripting

Bash not equal string comparison

Why does this cause an infinite loop? #!/bin/bash while ]; do echo "$(ipcs | awk '{print $2}')" done echo exit 0 I have verified I eventually get Semaphore so it should break out of the while loop. $ echo $(ipcs | awk '{print $2}') Shared shmid 262145 294914... (6 Replies)
Discussion started by: cokedude
6 Replies
OCI_FIELD_SIZE(3)														 OCI_FIELD_SIZE(3)

oci_field_size - Returns field's size

SYNOPSIS
int oci_field_size (resource $statement, mixed $field) DESCRIPTION
Returns the size of a $field. PARAMETERS
o $statement - A valid OCI statement identifier. o $field - Can be the field's index (1-based) or name. RETURN VALUES
Returns the size of a $field in bytes, or FALSE on errors. EXAMPLES
Example #1 oci_field_size(3) example <?php // Create the table with: // CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1), // clob_col CLOB, date_col DATE); $conn = oci_connect("hr", "hrpwd", "localhost/XE"); if (!$conn) { $m = oci_error(); trigger_error(htmlentities($m['message']), E_USER_ERROR); } $stid = oci_parse($conn, "SELECT * FROM mytab"); oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows echo "<table border="1"> "; echo "<tr>"; echo "<th>Name</th>"; echo "<th>Type</th>"; echo "<th>Length</th>"; echo "</tr> "; $ncols = oci_num_fields($stid); for ($i = 1; $i <= $ncols; $i++) { $column_name = oci_field_name($stid, $i); $column_type = oci_field_type($stid, $i); $column_size = oci_field_size($stid, $i); echo "<tr>"; echo "<td>$column_name</td>"; echo "<td>$column_type</td>"; echo "<td>$column_size</td>"; echo "</tr> "; } echo "</table> "; // Outputs: // Name Type Length // NUMBER_COL NUMBER 22 // VARCHAR2_COL VARCHAR2 1 // CLOB_COL CLOB 4000 // DATE_COL DATE 7 oci_free_statement($stid); oci_close($conn); ?> NOTES
Note In PHP versions before 5.0.0 you must use ocicolumnsize(3) instead. This name still can be used, it was left as alias of oci_field_size(3) for downwards compatability. This, however, is deprecated and not recommended. SEE ALSO
oci_num_fields(3), oci_field_name(3). PHP Documentation Group OCI_FIELD_SIZE(3)
All times are GMT -4. The time now is 10:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy