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Shell Programming and Scripting

Telephone Format and Check

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# 1  
Old 04-26-2017
Telephone Format and Check
How can I script to check telephone number entered by user in a uniz script:

Code:
print -n "Enter telephone number to check ? " ; read telno

How do I script to :
1) Check if entered without dashes or with dashes
2) If without dashes how can I check:
if telno is only 10 digits, if so convert it to ###-###-#####
3) IF already has dashes and contains 10 digits, then continue?

Thank you
# 2  
Old 04-26-2017
Had you mentioned your shell, you'd received a taylored proposal. Here's one for bash:
1) [ ${telno} == ${telno#*-} ] && ... (required dash count not specified in post#1)
2) [ ${telno} == ${telno#*[^0-9]} ] && [ ${#telno} -eq 10 ] && echo ${telno:0:3}-${telno:3:3}-${telno:6}
3) Place in the "else" branches of above tests.
# 3  
Old 04-26-2017
Did not work. Updated code below
Code:
#!/bin/bash
read -p "Enter Telephone number to check: " telno
TnDash=`echo ${telno:0:3}-${telno:4:3}-${telno:8}`
if  [ ${telno} == ${telno#*[^0-9]} ] && [ ${#telno} -eq 10 ]; then
  TN=`echo ${telno:0:3}-${telno:3:3}-${telno:6}`
else
if [ ${telno} == ${TnDash} ]; then
  TN=$telno
else
  echo "Invalid number <$telno> entered. Entry must be numeric and 10 digits separated by dashes"
fi
fi
 PORTEDIN_NUM=$TN
echo "TN Entered = $PORTEDIN_NUM"

Here is the updated code. It seems to work fine. But is it a good way to check input telephone numbers and convert?

Output test #1 :

Code:
Enter Telephone number to check: 214-800-3000
Temp = 214-800-3000
TN Entered = 214-800-3000
Check current log for this TN?[y/n]

Output test #2:

Code:
Enter Telephone number to check: 214-800-3000
TN Entered = 214-800-3000

Last edited by mrn6430; 04-26-2017 at 09:33 PM..
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