But if i want to include variables or pass arguments to regular expression then its giving me error "ls: cannot access /home/work/batch/somefilename_{27..96}.*: No such file or directory". But thats not true bec file is present but somehow with variables regex is not working.
Code:
>segStart="27"
>segEnd="96"
>myvar="$segStart..$segEnd"
>echo $segStart
27
>echo $segEnd
96
>echo $myvar
27..96
ls -d $WORKDIR/batch/somefilename_{$myvar}.*
"ls: cannot access /home/work/batch/somefilename_{27..96}.*: No such file or directory"
>array=($(ls -d $WORKDIR/batch/somefilename_$myvar.* 2>/dev/null))
>len=${#array[*]}
>echo $len
0
Can someone please advise here why the regular expression is not working when using ls and {..} with variables?
Note: I am trying to store all the directory names in an array whose directory name is between two integer number
for eg there are 1-100 dir available with name file_1.some file_2.some file_3.some .. file_100.some.
If user wants to get directory from 47 till 97, then i want to read that value, store them and pass it in above ls command.
If you have any other alternative that will also help.
Hi,
Actually i have written one test.sh (shell program) in bash.
Here i have a variables $a which stored the value package1.
Now I want to write a regular expression inside the if command that "if $a variable contains letter p in the begining of the value package1 then it is coming true.... (5 Replies)
Hi,
I have to match a certain pattern of string in my shell script:
6.0.4.11.9
7.5.1.7.1
First Number can be 6 or 7
Second number can be 0 or 5
Rest all numbers can be between 1-99
I am using following egrep:
egrep ^\.\.\.\.\$ filename
But why is the above regular... (1 Reply)
I have the following code:
ls -al /bin | tr -s ' ' | grep 'x'
ls -al: Lists all the files in a given director such as /bin
tr -s ' ': removes additional spaces between characters so that there is only one space
grep 'x': match all "x" characters that are followed by a whitespace.
I was... (3 Replies)
hi,
I have written a script to search MAC address in a given directory.
MAC address would be in format XX.XX.XX.XX.
The digits contain hexadecimal numbers.
For this i have used grep as follows.
grep -rn '^\{1,2\}\.\{1,2\}\.\{1,2\}\.\{1,2\}\$' *
This is not working as required.... (17 Replies)
Hi All,
I am facing some problems with regular expression with sed.
I have a .txt file with the contents as below:
This is a dummy file
# File created to test execution of regular expression.
Hope it works out.
As in the above contents there is a blank line which does not... (4 Replies)
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Hello ,
Could anyone help me to define the string in regular expression way .
Below is my string
\rtf1\ansi\deff0{\fonttbl{\f0\fswiss Helv;}{\f1\fnil MS Sans Serif;}}
{\colortbl ;\red0\green0\blue0;}
\viewkind4\uc1\pard\cf1\lang1033\f0\fs16
The string will always start as \rtf1 and... (6 Replies)
How can I define a regular expression of a string which can start with Capital alphabet or integer (A-Z) or (0-9) and can be of any number of characters
I have tried * but its not working
could anyone please suggest? (2 Replies)
Hello Everyone,
I have a file sam1 with the below content
SYSYSID;MANDT;/SIE/AD_Z0M_INDX;/SIE/AD_Z0M_KEY1
echo $Regex
\bSYSYSID\b|\bMANDT\b|\b/SIE/AD_Z0M_INDX\b|\b/SIE/AD_Z0M_KEY1\b
cat sam1 | grep -Eo $Regex
I expect the result as
SYSYSID
MANDT
/SIE/AD_Z0M_INDX
/SIE/AD_Z0M_KEY1... (4 Replies)
Discussion started by: sam99
4 Replies
LEARN ABOUT OSF1
cd
cd(1) General Commands Manual cd(1)NAME
cd - Changes the current working directory
SYNOPSIS
cd [directory]
Note
The C shell has a built-in version of the cd command. If you are using the C shell, and want to guarantee that you are using the command
described here, you must specify the full path /usr/bin/cd. See the csh(1) reference page for a description of the built-in command.
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
cd: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
None
OPERANDS
The pathname (either full or relative) to be used as the new working directory.
If (hyphen) is specified as the directory, the cd command changes your current (working) directory to the directory name saved in
the environment variable OLDPWD.
DESCRIPTION
The cd command moves you from your present directory to another directory. You must have execute (search) permission in the specified
directory.
If you do not specify a directory, cd moves you to your login directory ($HOME in ksh and sh environments, or $home in csh environment).
If the specified directory name is a full pathname, it becomes the current working directory. A full pathname begins with a / (slash) for
the root directory, with a . (dot) for the current working directory, or with a .. (dot dot) for the parent directory. If the directory
name is not a full pathname, cd searches for it relative to one of the paths specified by the $CDPATH shell variable (or $cdpath csh vari-
able). This variable has the same syntax as, and similar semantics to, the $PATH shell variable (or $path csh variable).
EXIT STATUS
The following exit values are returned:
The directory was successfully changed. An error occurred.
EXAMPLES
To change to your home directory, enter: cd To change to a new directory, enter: cd /usr/include
This changes the current working directory to /usr/include. Now file pathnames that do not begin with / or ../ specify files located
in /usr/include. To go down one level of the directory tree, enter: cd sys
If the current working directory is /usr/include and if it contains a subdirectory named sys, then /usr/include/sys becomes the cur-
rent working directory. To go up one level of the directory tree, enter: cd ..
The special filename .. (dot dot) always refers to the directory immediately above the current working directory.
ENVIRONMENT VARIABLES
The following environment variables affect the execution of cd: A colon-separated list of pathnames that refer to directories. If the
directory operand does not begin with a / (slash) character, and the first component is not (dot) or cd command will search for directory
relative to each directory named in the CDPATH variable, in the order listed. The new working directory will be set to the first matching
directory found. An empty string in place of a directory pathname represents the current directory. If CDPATH is not set, it will be
treated as if it were an empty string. The name of the home directory, used when no directory operand is specified. Provides a default
value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default
locale is used. If any of the internationalization variables contain an invalid setting, the utility behaves as if none of the variables
had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines
the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte char-
acters in arguments). Determines the locale for the format and contents of diagnostic messages written to standard error. Determines the
location of message catalogues for the processing of LC_MESSAGES. A pathname of the previous working directory, used by the cd - form of
the command. The cd command sets this variable to your current working directory before changing to a new current directory. A pathname
of the current working directory, set by the cd command after it has changed to that directory.
SEE ALSO
Commands: csh(1), ksh(1), pwd(1), Bourne shell sh(1b), POSIX shell sh(1p)
Functions: chdir(2)
Environment: environ(5)
Standards: standards(5)cd(1)
12-13-2019
