What would be the best way to check if a particular line (in variable) has an another line (more than 1 char)?
I understand it could be done with 'grep', 'sad', 'awk', by parameter expansion, but all these seems to me havy, worldy, not elegant and overhead in processing
For so common task I would expect something from shell, maybe, close to:
... I used here a '??' as a, kind of, search operator (as '?' is used for another action.)
But I do not know anything like that. - Maybe I just do not know?
Otherwise,
what would be your best aproach to perform that simple action?
Hello,
I'm trying to figure out how to speed up the following as I want to use multiple commands to search thousands of files.
is there a way to speed things up?
Example I want to search a bunch of files for a specific line, if this line already exists do nothing, if it doesn't exist add it... (4 Replies)
How do I pipe the output of something to a filename that includes the date, in a specific date format?
Here's the goal. Output a script to a file periodically during the day:
./script.sh >>logname_yyyy-mm-dd.logAnd when the next day comes, it starts logging to a new filename because the date... (2 Replies)
I have a file that contains the 2 following lines (from /proc/mounts)
/dev/sdc1 /mnt/backup2 xfs rw,relatime,attr2,noquota 0 0
/dev/sdb1 /mnt/backup xfs rw,relatime,attr2,noquota 0 0
I need to match the string in the second column exactly so that only one result is returned, e.g.
> grep... (2 Replies)
Below is the top of my Makefile. On one machine, I have mysql_config5, and another, I have mysql_config. In my .bashrc file of one UNIX machine, I added an alias so that that mysql_config5 is mysql_config, however, when I do make, it doesn't use that environment and I get compile errors, unless I... (1 Reply)
Dear all
I try to write a makefile for my code which have many source files, 1 header file that i make and exist into same folder with other source files and some other header files (by libraries witch i use) that found in other folders.
In my header file i have put all other #includes for... (3 Replies)
I have this problem on my SFTP script. When you direct the standard error to a file, it also contains the acknlowledgement. See below:
sftp.log
Connecting to xxx.xxx.xxx
This computer is property of x company and is intended on...
Connecting to xxx.xxx.xxx
This computer is property... (0 Replies)
I know that <cstudio> can also be <stdio> and can be written different ways on Linux then with windows.
I've see some code doing a IFDEF __APPLE__ (I'm guessing, if compiled on a mac do whats between this) Is there one for Linux/Window? (3 Replies)
I'm trying to create a bash script that takes a URL as one of its arguments like this:
./script.sh http://url.cfm?asdf&asdf=234
variable=$1
echo $variable
I'm having trouble storing the URL because it contains the meta character "&" which is being interpreted... thus when I run the... (4 Replies)
I'm writing a script to tar a list of log files. The tar command calls an includes file, which lists all of the log files that I want.
My apache web server, however, creates a log file every day with the datestamp (mmddyy) at the end of it. I want the includes file to get the previous day's... (1 Reply)