Linux kernel 2.6, Slackware 12.0.
I do grep -r string_1 .*txt. Is the path first expanded by the shell? If not, then say, ./elem1/elem2/file1.txt would search for string_1. However, it will not in my system. Note: '.' (period) in .*txt is any char. '.' in ./elem1/elem2/file1.txt is current dir. Now, .*txt should be, as a regexp, zero or more occurrences of any char followed by txt, that is, any string with txt as a suffix.
How can I use grep -Ev "pattern" not only to delete the matching "pattern" but to edit and save the file permanently as well
View 2 Replies View RelatedI have two files :
FileA
prot1
prot5
prot9
prot15
[Code]....
What I need to do is to extract from fileB the fields containing only the strings in fileA.
I thought awk could do the job easily with :
Code:
awk 'BEGIN { RS = "###" } /'$variable'/' fileB > output
where variable would maybe be the output of grep from fileA. So can I store the output of grep in a variable to use it afterwards with awk ?
something like that:
Code:
result=`grep prot. fileA` ; awk 'BEGIN { RS = "###" } /'$result'/' fileB > output
but that doesn't work. I'm always getting the entire fileB.
The output of grep get stored in the variable, I verified that with echo. So there is something that I just don't get... It seems to me that the above line should work.
I am trying to do a find/grep/wc command to find matching files, print the filename and then the word count of a specific pattern per file. Here is my best (non-working) attempt so far:
wc `find . ( -name "*.as" -o -name "*.mxml" ) -exec grep -H HeightResizableList {}` ;
I have two table files with x (1st column) ,y (2nd column) coordinates and intensity (3rd column). I need to match these two tables and divide the intensities at the consecutive coordinates on the 3rd column. The problem is the size of the tables are not same and I want to ignore the lines if they are not in one of the other file.
Here is Table 1:
Code:
-7.500-30.00013.006
-7.500-22.50037.952
-7.500-15.00060.962
-7.500-7.50040.922
-7.5000.00014.348
code....
I found the following function in /etc/profile file.
[Code]...
1. I dont undestand what "if ! echo $PATH | /bin/grep -qE "(^|:)$1($|:)"" this if statement actually comapres??
2. Also what is the difference between PATH=$PATH:$1 & PATH=$1:$PATH
I need to kind of grep within grep. My input file would be something like:
[Code]....
and I need to find the first occurrence of hello before MY PATTERN (hello 9008 in this case), so the output should be:
[Code]....
I use this command:
Code:
find ./ -atime +360
to figure out the files that haven't been accessed since 360 days. The command above will return results like this:
Code:
/uploads/2010/02/some-file-name.ext
/uploads/2009/08/another-file-name.ext
... etc
I'm taking here about tins of directories, thousands of files. I'm looking to find a command that makes me able to move the results above to another path, and to create that path once it doesn't exist like below:
Code:
mv /uploads/2010/02/some-file-name.ext /old-files/uploads/2010/02/some-file-name.ext
But I want the executed command to create this path
Code:
/old-files/uploads/2010/02/
If it doesn't exist.
Java applet not loading image with relative path(e.g. images/1.jpg) but loads image with absolute path(i.e. from /root/user/images/1.jpg) . This is a problem when i want to host the applet on web server
View 2 Replies View RelatedI have a program that takes a relative path as input appends it to a some path string to get the actual path.
Now all I can input is the relative path. So if I want to go one level above my input will be ../mypath.
If I know the depth of the path used internally, I can use .. as many times to go to the root directory and then give the absolute path. But suppose I do not know the depth of the directory, can I construct a relative path string such that it considers it as a relative path. One way could be to have enough .. in the path string so that I can force an absolute path for some maximum depth of path.
Is there some path string syntax that I am not aware of but can achieve this?
Experimenting with shell variables, accidentally deleted the path variable how could I return to the original path value. What kinds of problems will I have if I don't have a path variable.
View 3 Replies View Relatedhow to add a path to PATH variable permanently so that it remains persisent even after closing shell and rebooting the system when i added a path, to variable it remained there as long as i didn't closed the shell. but when i reopened it ,changed were undone.
View 2 Replies View RelatedI have a path c:windowsackup I need this string to be changed into /windows/back/up I used the command -bash-3.00$ echo windackup | sed 's/\//g' but the output is windbackup
View 7 Replies View RelatedCurrent script:-
prefix=user@my-server:
find . -depth -type d -name .git -printf '%h�' | while read -d "" path ; do (
cd "$path" || exit $?
[code]....
How shall i go about changing the absolute path to relative path, so that /home/git/mirror/android/adb/ndk.git gets converted to /mirror/android/adb/ndk.git //echo <command> "$prefix$PWD.git" ?? - anything for relative path?
I am trying to figure out how i can add the path /usr/sbin/ into the $PATH variable. I want this to be used from the normal account. I am bored settinh this manualy each time my computer starts.
View 2 Replies View RelatedWhen I add some path in .bashrc by commenting out old path and adding new one like this:
#EXPORT HOME_PLAY=/home/gem/old_play
EXPORT HOME_PLAY=/home/gem/play
EXPORT PATH=$PATH:HOME_PLAY
After saving above changes, I enter the command: source ~/.bashrc Now if I do echo $PATH, the path shows both the old PLAY_HOME and new PLAY_HOME. This is really bad and messes up a lot of things in my project. This problem only goes away if I logout or reboot, a rather very long process. What is happening is that the old path is added to new path element and the old path includes the old path element you want to remove.
Does anyone know how to get the path with a inode number by C programming?
Or can I get the absolute path without giving a "path" but a inode number by C?
like this: get_path(unsigned inode);
not such this function: getcwd(".", xxx);
taowuwen@gmail.com
running Windows 7 64bit with VMware Workstation 7.01-build 227600. I have some knowledge of Linux, I have installed f12 and have updated the system as of 03/22/2010. All updates completed successfully.
1) How do I install VMTools on the f12 (after mounting the CD/DVD tool package)
2) How do I update the gcc files it says are dependencies?
Here's what I get on installation:Before you can compile modules, you need to have the following installed...
make
gcc
kernel headers of the running kernel
and then I am prompted for this input from the install script:
Searching for GCC...
The path "" is not valid path to the gcc binary.
Would you like to change it? [yes]
and this is where I get stuck. How do I get around this or satisfy the requirements for the install?
Iptables manual page says:
Why doesn't it make sense for packets coming from a wireless interface?
Just installed OpenSuse 11.4 on a laptop yesterday. Trying to compile VMware player, however my kernel headers are not matching with repo code...
View 9 Replies View RelatedIn a bash-script, only the case if a regular expression does not match is relevant.herefore I used the exclamation mark !. But where to place it?
These two work fine, but are they equivalent?
Code: if ! [[ $abc =~ $pattern ]]; then or
Code: if [[ ! $abc =~ $pattern ]]; then Where is the ! placed more correct?
Im trying to use awk to do matching in only a specific column
example.txt:
www.google.com www.example.com
www.google.com/search www.example2.com
i used:
awk '{ (if $1 == "http://www.google.com") print $2}' example.txt
this awk statement only returns the first line, and i cant seems to make it perform in a way to match based on keywords like GREP. Is there any way to make display the other lines which contains "google" also?
I need to add some text using sed before and after the matching pattern. Does any one have any clue?e.g.cat /my/file | sed -e "s/first pattern/New Pattern/g" . /my/file.bakNow I need a result like New Pattern
View 7 Replies View RelatedI am trying to check if the 9th character in a file on each line is a v and if so, then print the first word. I've tried a number of variations and am stuck !If it's possible to also check if character position 1 begins with a s in the same awk, that would make it cleaner instead of using egrep.
egrep '^s' file | nawk '{virtual=substr($0,9,1); if ($virtual=="v") {printf "%s", $1}}'
nawk: illegal field $(e)
input record number 1
source line number 1
I am struggling to understand why nawk matches values that are either 1 or 2 digits in length, but not 100 (3 digits).
Am I missing something obvious ? Should I use substr to remove the % ?
I am sure it's something to do with character and string matching behaviour with nawk.
Code:
I have the following string:"My dog spot(page 1)". I want just "My dog spot". How do I do this in SQL Server?
View 2 Replies View Relatedkernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17
Code:
As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.
If I am root, things go well:
Code:
I have a requirement to list files using find command My folder contains below list of files with out extention.I have a requirement to exclude only ABC.123.* type files and list others. Even though files having MNO contains this pattern i should not exclude. Even if file ends with .txt or .doc it should not be excluded. That is ABC.123.1234.txt should not be excluded.But I am not getting what is required. Can any one please let me know if I am doing wrong any where. As per my requirement I cannot use grep, -regex, or -regex attributes to find command.
View 7 Replies View Relatedjust updated to new 2.6.33.124 kernel along with some other updates to python and boy what a mess!
I can't run at all with the new kernel (the kernel appears to load but stops before the xserver loads, I think)I really don't think this is a generally problematic bug though, i'm afraid that this setup is just fusty since I have been having trouble with metacity (causes the cpu to spin up --metaphorically of course--to ridiculous amounts until I kill the process, which it happily does without actually killing it but it does spin down again to 2-3% from 60% or so) and the python update seems to have killed the nVidia setup and 3D as well. so.... anybody have any suggestions on how to straighten this mess out without setting up again? This is actually the second time I set this up since the metacity bug made me thing it was fusty the first time, but a second setup didn't solve it.
I did turn the metacity bug in as a kernel bug (because it was in some way related to massive kernel ticks which was keeping the cpu going, but have had no response to that, unless this latest update did that.
How can I remove all .swp files in all of my subdirectories under Linux?
View 4 Replies View Related
