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Shell Programming and Scripting
sed with variables
Post 302626165 by Peasant on Thursday 19th of April 2012 03:19:29 AM
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I'm trying to do the following , I have certain variables in a file and then I want to check for these variables in a certain cobol file to see if they contain a certain package if so replace them with value 1 but but that last line is giving problems:
# for each variable in SQL file
... (1 Reply)
Discussion started by: seaten
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2. Shell Programming and Scripting
Hi,
I'm trying to do the following , I have certain variables in a file and then I want to check for these variables in a certain cobol file to see if they contain a certain package if so replace them with value 1 but but that last line is giving problems:
# for each variable in SQL file
... (1 Reply)
Discussion started by: seaten
1 Replies
3. UNIX for Dummies Questions & Answers
Hi guys,
I want to replace certain values with the number 1.
But it is also replacing other values which contain the value I want to replace. e.g.:
I want to replace ID-INTERNAL with 1, that's no problem but it will also replace ID-INTERNAL-NON-REM with 1-NON-REM
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4. Shell Programming and Scripting
when i do something like substituting a particular thing with a system variable, i am unable to do that expect the varible name getting into that.
for ex.. i tried,
sed -e 's/date/`date`/g' <if >of
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Hi,
I'm trying to use sed to delete the last three lines of a file. I currently have:
# get the amount of lines in the file
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6. Shell Programming and Scripting
HELP!!!
I'm keep getting "sed: Function s/PETS/dog cannot be parsed."
I have 2 files that list...
# cat FILE1.txt
dog
cat
mouse
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my pets are
PETS
I put this into a variable...
# A=`cat FILE1.txt`
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I'm trying to get sed to cut and replace using variables, but it doesnt seem to work, when I run this the mod time of the file does get updated. Is my syntax incorrect in the sed command?
Thanks
#!/usr/bin/ksh
#Modify header
set -x
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8. UNIX for Dummies Questions & Answers
Hi,
I am able to use sed if I hardcode the find and replace values in a shell script.
This works:
sed -e 's/123v/4567/g' /path/aaa.txt
> /path/aaa.txt.tmp
If I use a variable, I am not able to use sed command. why?
This doesnot work:
i=abc
j=bk${i}
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9. Shell Programming and Scripting
Is it possible to place a variable in a sed command as such?
sed 's/ret_Priv()/$var/' <filename>
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All
I am trying to produce the following in /etc/ssh/sshd_config,
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LEARN ABOUT NETBSD
quiz
QUIZ(6) BSD Games Manual QUIZ(6) NAME
quiz -- random knowledge tests SYNOPSIS
quiz [-t] [-i file] [question answer] DESCRIPTION
The quiz utility tests your knowledge of random facts. It has a database of subjects from which you can choose. With no arguments, quiz displays the list of available subjects. The options are as follows: -t Use tutorial mode, in which questions are repeated later if you didn't get them right the first time, and new questions are presented less frequently to help you learn the older ones. -i Specify an alternative index file. Subjects are divided into categories. You can pick any two categories from the same subject. quiz will ask questions from the first cate- gory and it expects answers from the second category. For example, the command ``quiz victim killer'' asks questions which are the names of victims, and expects you to answer with the cause of their untimely demise, whereas the command ``quiz killer victim'' works the other way around. If you get the answer wrong, quiz lets you try again. To see the right answer, enter a blank line. Index and Data File Syntax The index and data files have a similar syntax. Lines in them consist of several categories separated by colons. The categories are regular expressions formed using the following meta-characters: pat|pat alternative patterns {pat} optional pattern [pat] delimiters, as in pat[pat|pat]pat In an index file, each line represents a subject. The first category in each subject is the pathname of the data file for the subject. The remaining categories are regular expressions for the titles of each category in the subject. In data files, each line represents a question/answer set. Each category is the information for the question/answer for that category. The backslash character (``'') is used to quote syntactically significant characters, or at the end of a line to signify that a continuation line follows. If either a question or its answer is empty, quiz will refrain from asking it. FILES
/usr/share/games/quiz.db The default index and data files. BUGS
quiz is pretty cynical about certain subjects. BSD
May 31, 1993 BSD