hi all,
i have a file that contains the following kind of data
codeexpert_package_module1.html
codeexpert_package_module2.html
codeexpert_package_module3_revision2.html
and it goes on ..
i need to get the following data from it
package_module1
package_module2
i know basename... (4 Replies)
Hi
I have the following case statement:
case $larg in
*_* )
a=${larg%_*}; b=${larg#*_};
;;
*^* )
a=${larg%^*}; b=${larg#*^};
;;
esac
I cannot figure out what *_* and *^* stand for...
Also what a=${larg%_*}; b=${larg#*_}; and
a=${larg%^*}; b=${larg#*^}; ... (1 Reply)
Dear experts,
I'm trying to write a script to calculate the usage of Log Archive in a directory, so if it gets to a point where the directory size is 60%, then send out an FYI.. email. So if then it reaches to 80%, move the logs from that directory.
I have written the script as follow but... (10 Replies)
Hi,
I am trying to get the system RAM size from "top" command's output by the following but it is not working.
top | sed "s/^Mem.**\(*\), *//" (10 Replies)
Hi
I am trying to figure out what the following line does, I work in ksh88:
] && LIST="$big $LIST"
Not sure what "-a" means in that case.
Thanks a lot for any advice -A (1 Reply)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Hi Guys,
I'm sorry but I can't find answer for this, what is the meaning of -s option in "if" statement on unix scipting. Please see sample below:
opath=/home/output
for i in N1 N2 N3 N4
do
echo $i
if
then
grep $i $opath/N5_CRAI > $opath/N5_$i.crai
chmod 777 $opath/N5_$i.crai
... (7 Replies)
Hello,
I am somewhat new to Linux/Unix. I am currently working on a shell script that is suppose to cat a file, grep the same file for a certain line, if that line is found save the file in a different location, else remove the file.
This is a rough example of what I want.
$Dating = False... (13 Replies)
I saw some recent posts where I thought the terms "field" and "column" were being misused. I work with data a lot, and have my opinions. I'm wondering if those opinions are correct.
***** Rows seem clear - I don't think there is any controversy about what a row is, either for database or text... (10 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT NETBSD
glob
GLOB(7) BSD Miscellaneous Information Manual GLOB(7)NAME
glob -- shell-style pattern matching
DESCRIPTION
Globbing characters (wildcards) are special characters used to perform pattern matching of pathnames and command arguments in the csh(1),
ksh(1), and sh(1) shells as well as the C library functions fnmatch(3) and glob(3). A glob pattern is a word containing one or more unquoted
'?' or '*' characters, or ``[..]'' sequences.
Globs should not be confused with the more powerful regular expressions used by programs such as grep(1). While there is some overlap in the
special characters used in regular expressions and globs, their meaning is different.
The pattern elements have the following meaning:
? Matches any single character.
* Matches any sequence of zero or more characters.
[..] Matches any of the characters inside the brackets. Ranges of characters can be specified by separating two characters by a '-' (e.g.
``[a0-9]'' matches the letter 'a' or any digit). In order to represent itself, a '-' must either be quoted or the first or last
character in the character list. Similarly, a ']' must be quoted or the first character in the list if it is to represent itself
instead of the end of the list. Also, a '!' appearing at the start of the list has special meaning (see below), so to represent
itself it must be quoted or appear later in the list.
Within a bracket expression, the name of a character class enclosed in '[:' and ':]' stands for the list of all characters belonging
to that class. Supported character classes:
alnum cntrl lower space
alpha digit print upper
blank graph punct xdigit
These match characters using the macros specified in ctype(3). A character class may not be used as an endpoint of a range.
[!..] Like [..], except it matches any character not inside the brackets.
Matches the character following it verbatim. This is useful to quote the special characters '?', '*', '[', and '' such that they
lose their special meaning. For example, the pattern ``\*[x]?'' matches the string ``*[x]?''.
Note that when matching a pathname, the path separator '/', is not matched by a '?', or '*', character or by a ``[..]'' sequence. Thus,
/usr/*/*/X11 would match /usr/X11R6/lib/X11 and /usr/X11R6/include/X11 while /usr/*/X11 would not match either. Likewise, /usr/*/bin would
match /usr/local/bin but not /usr/bin.
SEE ALSO fnmatch(3), glob(3), re_format(7)HISTORY
In early versions of UNIX, the shell did not do pattern expansion itself. A dedicated program, /etc/glob, was used to perform the expansion
and pass the results to a command. In Version 7 AT&T UNIX, with the introduction of the Bourne shell, this functionality was incorporated
into the shell itself.
BSD November 30, 2010 BSD