How to understand special character for line reading in bash shell?
I am still learning shell scripting. Recently I see a function for read configuration. But some of special character make me confused. I checked online to find answer. It was not successful. I post the code here to consult with expert or guru to get better understanding on these special characters such as:^[^#]*=,line%%=*,line#*=. how to understand the usage of these special character here. Thanks.
Hello,
On Sco OpenServer 5, i want to print using the lpr command, no CUPS installed.
I print on an HP LaserJet 4050 on LAN (IP 192.168.x.x)
the printer is installed by HP Network Printer service.
it works fine, but Specials characters, like é, @ or ° print bad characters.
Is there... (5 Replies)
Hi, experts.
Whould anybody clear explay me difference and usage of these 3 commands (particulary in bash) :
exec
eval
source
I've tryed to read the manual pages but did not get much.
Also could not get something useful from Google search - just so much and so not exactly, that is... (3 Replies)
I used following to add * at the end of the line in file1.
It adds * at the end but has a space before it for some lines but some other lines it adds exactly after the last character.
How do I take out the space ?
sed 's/$/*/' file1 > file2
example:
contents of file1 :
... (2 Replies)
Hi,
I have a log file generated by a tool which has the following look :
/tmp/releases/directory/datefilename1_release_date.zip
/tmp/releases/directory/datefilename2_release_date.zip
/tmp/releases/directory/datefilename3_release_date.zip... (8 Replies)
I do not claim to be an expert, but I have done things with scripts that whole teams of folks have said can not be done. Of course they should have said we do not have the intestinal fortitude to git-r-done.
I have been using UNIX actually HPUX since 1992. Unfortunately my old computer died and... (7 Replies)
I am using this character as a delimiter 'þ'
Currently, I set it straight:
DELIMITER='þ'
However, while copying the file, this character often gets mangled. Is there a bash way (perhaps using tr or printf) of generating this character.
It corresponds to
"chr(0xfe)" if using perl. (I've... (6 Replies)
Hi all,
I have a file with some module names as below.
Font::AFM
Data::Grove ---> libxml-perl
Net::LDAP ---> perl-ldap
DBI
XML
....
...
....
and so on ...
The file has some lines with the character " -->" .
Now how can I cut only the last column of the line wherever "-->" is... (4 Replies)
Hello every one and thanks in advance for the time you will take to think about my problem.
I would like to know if it's possible (in BASH) to read a text file character after character.
Exactly this is what I would like to do :
Txt file : ATGCAGTTCATTGCCAAA...... (~2.5 millions... (3 Replies)
when I execute the unix commands its works normally in the 1st part.
When I the tried the same in shell scripting the directory is not displayed in 2nd part example. please let me know what needs to be done.
Unix :
client=~zsvdbs
echo $client
/shome/zsvhome/zsvdbs
Using... (3 Replies)
Hi,
I am new in bash scripting. In my work, I provide support to several users and when I connect to their computers I use the same admin and password, so I am trying to create a script that will only ask me for the IP address and then connect to the computer without having me to type the user... (5 Replies)
Discussion started by: arcoa05
5 Replies
LEARN ABOUT NETBSD
paste
PASTE(1) BSD General Commands Manual PASTE(1)NAME
paste -- merge corresponding or subsequent lines of files
SYNOPSIS
paste [-s] [-d list] file ...
DESCRIPTION
The paste utility concatenates the corresponding lines of the given input files, replacing all but the last file's newline characters with a
single tab character, and writes the resulting lines to standard output. If end-of-file is reached on an input file while other input files
still contain data, the file is treated as if it were an endless source of empty lines.
The options are as follows:
-d list Use one or more of the provided characters to replace the newline characters instead of the default tab. The characters in list
are used circularly, i.e., when list is exhausted the first character from list is reused. This continues until a line from the
last input file (in default operation) or the last line in each file (using the -s option) is displayed, at which time paste
begins selecting characters from the beginning of list again.
The following special characters can also be used in list:
newline character
tab character
\ backslash character
Empty string (not a null character).
Any other character preceded by a backslash is equivalent to the character itself.
-s Concatenate all of the lines of each separate input file in command line order. The newline character of every line except the
last line in each input file is replaced with the tab character, unless otherwise specified by the -d option.
If '-' is specified for one or more of the input files, the standard input is used; standard input is read one line at a time, circularly,
for each instance of '-'.
The paste utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cut(1)STANDARDS
The paste utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD June 6, 1993 BSD