Visit Our UNIX and Linux User Community


If statement


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting If statement
# 1  
Old 10-21-2013
If statement

Hi,

I have this code here. Its suppose to do something when certain condition is met, I'm pretty sure at least one of the condition will be meet somewhere in the loop but it always go to else part of the script.

Is something wrong on this script?

Code:
age_list=`tar -tvf /home/dir/$tarfile | grep $some_variable | grep "$date"`
           if [ -f "$age_list" ]; then
                 echo "yes"
           else
                 echo "no"
           fi

Thanks!
# 2  
Old 10-21-2013
Where is the $date variable set? I do not see it.
# 3  
Old 10-21-2013
to get the $date, I use the read command.

The format for the date is "Mon dd". i.e. Jan 17
# 4  
Old 10-22-2013
Set xtrace / verbose and debug your code to understand what is going on.
# 5  
Old 10-22-2013
Sure that age_list will hold one single file that exists?

Previous Thread | Next Thread
Test Your Knowledge in Computers #223
Difficulty: Easy
In September 2019, according to NetMarketShare, Windows had just over 87% of the global desktop market, followed by Mac OS at close to 10%, and Linux in third place at around 2%.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Convert Update statement into Insert statement in UNIX using awk, sed....

Hi folks, I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex. I have a bunch of update statements with all columns in a file which I need to convert into insert statements. UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies

2. Shell Programming and Scripting

Statement

${PFILE}.backupfile Please tell me what the above statement means? (1 Reply)
Discussion started by: lg123
1 Replies

3. Shell Programming and Scripting

Statement

${GREP} ASM /var/opt/oracle/oratab | \ ${CUT} -d':' -f1 Please tell me the meaning for the above statement. (2 Replies)
Discussion started by: lg123
2 Replies

4. Shell Programming and Scripting

If statement help

I'm trying to create a script that would allow me to identify the sucessful removal of a file. Here's what i put together so far, let me know if it's correct or not. FILE_NAME="cactus.dat" FILE_FIND='find / -name $FILE_NAME' if ;then echo "cactus.dat was not removed successfully" ... (3 Replies)
Discussion started by: sdpinoy
3 Replies

5. UNIX for Dummies Questions & Answers

If statement (yes or no)

I have the program: #!/bin/ksh echo Please enter yes or no read n typeset -l n if ] then echo My name exit else echo delete my name fi Question: How can I make the program accept only the word "yes" or "no" otherwise it will ask the user to re-enter? Thanks! (7 Replies)
Discussion started by: bobo
7 Replies

6. Shell Programming and Scripting

How is use sselect statement o/p in insert statement.

Hi All, I am using Unix ksh script. I need to insert values to a table using the o/p from a slelect statement. Can anybody Help! My script looks like tihs. ---`sqlplus -s username/password@SID << EOF set heading off set feedback off set pages 0 insert into ${TB_NAME}_D... (2 Replies)
Discussion started by: nkosaraju
2 Replies

7. Shell Programming and Scripting

If statement - How to write a null statement

In my ksh script, if the conditions of a if statement are true, then do nothing; otherwise, execute some commands. How do I write the "do nothing" statement in the following example? Example: if (( "$x"="1" && "$y"="a" && "$z"="happy" )) then do nothing else command command fi... (3 Replies)
Discussion started by: april
3 Replies

8. Shell Programming and Scripting

statement

I want to write a program that would convert yard to feet and feet to yard. i.e 1 yard = 3 * feet Echo "enter a" read a expr a *3 The trick is that I want to give the user some options. After the conversion from yard to feet is done, I want to ask the user whether or not he/she wants to... (10 Replies)
Discussion started by: Ernst
10 Replies

9. Shell Programming and Scripting

if statement

can someone please tell me what is wrong with the below. i'm trying to get a script to run if the content of a variable is either small letter y or capital letter Y. if then whatever fi (4 Replies)
Discussion started by: Terrible
4 Replies

10. Shell Programming and Scripting

If statement

Hi, I have a statement in shell script which i am writing below: if ] then ..... What is the meaning of -a option in files, meaning of the statement in the if condition ] means. Thanks (3 Replies)
Discussion started by: dreams5617
3 Replies

Featured Tech Videos