09-19-2000
Is there a way to pull out a character at a time from a work in unix, using a shell script?
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1. Shell Programming and Scripting
Hi
] && exit 0
Although it, the $answer, is 'y', the test operation returns true.
&& exit 0
This works but I want to do multiple choice matching.
I don't want to do like:
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2. Shell Programming and Scripting
looking for a bit of help with sed.
I have a file that looks a bit like this:
sdfghhjk
asdfdfghgj
asdfhgghj
werdfvtfh
edftbgh
1211211221
sdffgfm
dfghnhjm
dfvfsgbgh
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fffffff
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3. Shell Programming and Scripting
Hello Experts,
Can someone help me here:
I have a variable which contains a string with "".
set var1 {a}
set str1 {a is the element i want to match}
Now "regexp $var1 $str1" does not work?
("regexp {a\} $str1" works, but var1 gets it's value automatically from another script)
Is... (6 Replies)
Discussion started by: sumitgarg
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Alright, I am stuck here.
I have this variable that stores the word = HELLO and I have converted it it to -----
I have asked user to input one character at a time. SAy, if they enter E.
Therefore, I need to search 2nd character and input E there.
makes it -E--- (other checkings have been... (2 Replies)
Discussion started by: felixwhoals
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5. Shell Programming and Scripting
Hi,
I have a file 'imei_01.txt' having the following contents:
$ cat imei_01.txt
a123456
bbr22135
yet223
where I want to check whether the expression 'first single alphabet followed by 6 digits' is present in the file (here it is the first record 'a123456')
I am using the following... (5 Replies)
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6. Shell Programming and Scripting
Hi,
I have field in a file which would come with any special character, how do i check that field?
Eg: @123TYtaasa>>>/ 131dfetr_~2
In the above example, how do I add pattern for any special character on the keyboard.
Thanks (3 Replies)
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7. Shell Programming and Scripting
Sample file:
This is line one,
this is another line,
this is the PRIMARY INDEX line
l ;
This is another line
The command should find the line with “PRIMARY INDEX” and remove the last character from the line preceding it (in this case , comma) and remove the first character from the line... (5 Replies)
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8. Shell Programming and Scripting
Script for if characters from positions 7-15 are matching with characters from position 211-219 then replace all char from 211-219 with 9 space.
Total length of record is 420. Here is the specification of the data in file.
Position Field Data Type... (5 Replies)
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9. Shell Programming and Scripting
Hi.
I have 2 files of below format.
File1
AA~1~STEVE~3.1~4.1~5.1
AA~2~DANIEL~3.2~4.2~5.2
BB~3~STEVE~3.3~4.3~5.3
BB~4~TIM~3.4~4.4~5.4
File 2
AA~STEVE~AA STEVE WORKS at AUTO COMPANY
AA~DANIEL~AA DANIEL IS A ELECTRICIAN
BB~STEVE~BB STEVE IS A COOK
I want to match 1st and 3rd... (2 Replies)
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10. Ubuntu
I'm trying to convert this working bash script into an Ash script,
read -p "Username:" _username
if ! ]]; then
echo "Valid"
else
echo "INVALID"
fi
However, Ash does not recognize the "=~" character.
How can I do this?
Also, is there a good reference guide, so I... (5 Replies)
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LEARN ABOUT ULTRIX
escape
escape(1) Mail Avenger 0.8.3 escape(1)
NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO
avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)