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UNIX for Beginners Questions & Answers
Help with if else statement...
Post 303046355 by vbe on Saturday 2nd of May 2020 05:33:32 AM
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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)
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2. Shell Programming and Scripting
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)
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3. Shell Programming and Scripting
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
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4. Shell Programming and Scripting
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
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5. Shell Programming and Scripting
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
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6. UNIX for Dummies Questions & Answers
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)
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7. Shell Programming and Scripting
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
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8. Shell Programming and Scripting
${PFILE}.backupfile
Please tell me what the above statement means? (1 Reply)
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9. Shell Programming and Scripting
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?
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10. Shell Programming and Scripting
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.
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LEARN ABOUT ULTRIX
mdc
mdc(4) Kernel Interfaces Manual mdc(4) Name mdc - DS5100 serial line driver Syntax device mdc0 at ibus? vector mdcintr device mdc1 at ibus? vector mdcintr device mdc2 at ibus? vector mdcintr Description A DS5100 base system (mdc0) provides four asynchronous ports. An optional asynchronous card (mdc1 and mdc2 ) can be added to supply eight additional ports. The mdc ports are used as follows: Port Usage Connector 0 Console port 6-pin MMJ on CPU board 1 Local terminal 6-pin MMJ on CPU board 2 Full modem control port 25-pin D-Sub on CPU board 3 Local terminal 6-pin MMJ on CPU board An optional asynchronous board provides an additional eight lines: 4 Local terminal 6-pin MMJ 5 Local terminal 6-pin MMJ 6 Full modem control port 25-pin D-Sub 7 Local terminal 6-pin MMJ 8 Local terminal 6-pin MMJ 9 Local terminal 6-pin MMJ 10 Local terminal 6-pin MMJ 11 Local terminal 6-pin MMJ The console baud rate is set to 9600 baud by default. You can change this by setting the baud environment variable from console prompt. Each communication port from the serial line controller behaves as described in the reference page and can be set to run at any of 16 speeds. For the encoding, see You can establish the state of port 2 (port 6) by specifying either modem or nomodem as part of the file entry. Restrictions The speed default is to 9600 baud on the console port. The console device must be set for 8-bit character length with one stop bit and no parity. The driver enforces these restrictions; that is, changing speeds with the command may not always work on console ports. Files Console terminal Full modem control or local terminal See Also console(4), devio(4), tty(4), ttys(5), MAKEDEV(8) RISC mdc(4)