i am a new user of C-shell script.
I want to know can i create a substring in a string.
That means when i got a variable $input = "it is number 2"
I want to get the "2" to be another variable.
Can i do that in C-shell and how to ?
Thank you so much
dinodash (0 Replies)
Hi All,
Following is the output of a find commnd to locate log directories for various projects of UNIX AIX box:
/home/hbinz6pf/projectlibs/dpr_pfsdw_dev/&PH&
/opt/tools/ds/Template/&PH&
/data/ds/ms/hmsdw/projectlibs/dpr_ms_dev/&PH&
/data/ds/riskmi/projectlibs/dpr_riskmi_dev/&PH&... (1 Reply)
Hi All,
Following is the output of a find commnd to locate log directories for various projects of UNIX AIX box:
/home/hbinz6pf/projectlibs/dpr_pfsdw_dev/&PH&
/opt/tools/ds/Template/&PH&
/data/ds/ms/hmsdw/projectlibs/dpr_ms_dev/&PH&
/data/ds/riskmi/projectlibs/dpr_riskmi_dev/&PH&... (5 Replies)
Hi
I'm new to Shell scripting. Someone please help me in extracting a portion of string from a file.
Eg:
I got a file like, Readme.txt and has the following name value pairs
input1 : /homes/input1/
input2 : /homes/input2/
...
...
When I give the parameter input1, the value... (3 Replies)
please give me proper solution for finding a shortest substring from given string if string itself and first char and last char of that substr are also given by user
if S="dpoaoqooroo" and FC="o" and LC="o",then shortest substr is "oo" and rest of the string is "dpoaoqroo"
i have code but it is... (1 Reply)
I need a help in getting substring of each line in input file.
I am writing a script that will read a file from a directory on daily basis, I mean everyday a new file will be stored in this directory, it will replace old file. I have to read contents of this file, the contents will be as... (5 Replies)
hi all,
i need an urgent help for writing a shell script which will extract out and print a substring which is the shortest substring from the given string where first and last character of that substring will be given by the user.
for e.g.
if str="abcdpqracdpqaserd"
now if the user gives 'a'... (18 Replies)
Hi all,
I am new to scripting.
I have a file with colon separated values called mylist.txt
cat mylist.txt
192.123.76.89:lmprod89
162.122.20.28:lmtstserver28
10.80.32.139:hewprod139
.
.
using our internal os utility (called mvsping) we need to check all these servers if they are... (6 Replies)
I want to check if the string has the substring in IF condition then process...
i tried below but not working
if ];
then
.............
field can be "reserved1" ....reservedn / fillspaces1 ... fillspacesn (4 Replies)
Hi all,
Please, i'd like to extract string just before '.fr'.
Here is some lines of my file:
g-82.text.text1.fr.worker1
g-xx.yyyyyy.zzzz.fr.worker2
i'd like to extract this text:
g-82.text.text1
g-xx.yyyyyy.zzzz
Please, which command i have to use in my script shell ?
... (16 Replies)
Discussion started by: chercheur111
16 Replies
LEARN ABOUT V7
expr
EXPR(1) General Commands Manual EXPR(1)NAME
expr - evaluate arguments as an expression
SYNOPSIS
expr arg ...
DESCRIPTION
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr
yields the first expr if it is neither null nor `0', otherwise yields the second expr.
expr & expr
yields the first expr if neither expr is null or `0', otherwise yields `0'.
expr relop expr
where relop is one of < <= = != >= >, yields `1' if the indicated comparison is true, `0' if false. The comparison is numeric if
both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
multiplication, division, or remainder of the arguments.
expr : expr
The matching operator compares the string first argument with the regular expression second argument; regular expression syntax is
the same as that of ed(1). The (...) pattern symbols can be used to select a portion of the first argument. Otherwise, the
matching operator yields the number of characters matched (`0' on failure).
( expr )
parentheses for grouping.
Examples:
To add 1 to the Shell variable a:
a=`expr $a + 1`
To find the filename part (least significant part) of the pathname stored in variable a, which may or may not contain `/':
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
SEE ALSO ed(1), sh(1), test(1)DIAGNOSTICS
Expr returns the following exit codes:
0 if the expression is neither null nor `0',
1 if the expression is null or `0',
2 for invalid expressions.
EXPR(1)