10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
(I am using bash)
I have a command that will find the line number in a file by searching for a string where it exists.
linenumber=$(grep -n "string" $FILENAME | cut -d : -fi)
This returns the line number and removes the string. Now that I have the line number I want to subtract 4 from it and... (5 Replies)
Discussion started by: prodigious8
5 Replies
2. UNIX for Dummies Questions & Answers
Hi, I'm trying to get multiple substitutions in one expression using sed:
echo "-foo-_-bar--foo-_bar_-_foo_bar_-foo_-_bar_-" | sed -e "s//-/g"
So, as you can see I'm trying to replace all instances of _-, -_, -- with - (dash)
I have provided bad example. The question is how to use multiple... (6 Replies)
Discussion started by: useretail
6 Replies
3. Shell Programming and Scripting
Hey everyone! I am determining the best method to do what the subject of this thread says. I only have pieces to the puzzle right now. Namely this:
grep -rl "expression" . | xargs open
(I should mention that the intention is to grep through many files containing the "expression" and... (2 Replies)
Discussion started by: Alexander4444
2 Replies
4. Shell Programming and Scripting
Dear all,
I have few log folders in directory (FILE) and i need to perform sed on each files inside each folders. Here is my script, and i wish to rename each file back to the same file name after modification. Can anyone guide me on my script below?
eg:
folder1 contain files... (2 Replies)
Discussion started by: ymeyaw
2 Replies
5. Shell Programming and Scripting
Hi,
I have a directory /home/datasets/ which contains a bunch (720) of subdirectories called hour_1/ hour_2/ etc..etc.. in each of these there is a single text file called (hour_1.txt in hour_1/ , hour_2.txt for hour_2/ etc..etc..) and i would like to do some text processing in them.
Each of... (20 Replies)
Discussion started by: amarn
20 Replies
6. Shell Programming and Scripting
Is there anyway to accomplish this?
(ksh)
FILES_TO_PROCESS='NAME1 NAME2'
SOURCE_NAME1=/tmp/myfile
TARGET_NAME1=/somewhere/else
# other file names
for i in $FILES_TO_PROCESS
do
file1=SOURCE_$i
file2=TARGET_$i
echo cp ${$file1} ${$file2} <-- how do get this to work.
done (2 Replies)
Discussion started by: koondog
2 Replies
7. Shell Programming and Scripting
Hi guys,
Is there any way this can be done, or return whether any substitutions have been made?
thanks for any input.
skinnygav (using Bash shell) (2 Replies)
Discussion started by: skinnygav
2 Replies
8. Shell Programming and Scripting
Hi:
Let's suppose I want to replace all the | by > ONLY when | is between . Usually (and it works) I would do something like
sed -e 's/\(\*\)|\(*\]\)/\1>\2/g'
where I have to "save" some portions of the matched region and use them with the \n metacharacter. I was wondering if I could... (2 Replies)
Discussion started by: islegmar
2 Replies
9. AIX
I have this Korn script that I wrote (with some help) that is run by cron. I basically watches a file system for a specific filename to be uploaded (via FTP), checks to make sure that the file is no longer being uploaded (by checking the files size), then runs a series of other scripts. The... (2 Replies)
Discussion started by: heprox
2 Replies
10. UNIX for Dummies Questions & Answers
How do I perform a command to multiple files? For example, I want to look at all files in a directory and print the ones that do not contain a certain string. How do I go about doing this? (4 Replies)
Discussion started by: mcgrawa
4 Replies