12-01-2003
typeset -xL5 s=$(echo $d|awk '{print substr($0,2,5)}')
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1. UNIX for Dummies Questions & Answers
Here is my code
let x=10 #or any other calculated value done here
`echo $sol | awk '{print substr($0,1,(x-3))}'`
Question.
I am able to use the variable x in beginning at character "1"
but I get nothing when using it for the next n characters.
Should I be able to... (1 Reply)
Discussion started by: smacleod
1 Replies
2. Shell Programming and Scripting
What is the more efficient way to do this (awk only and default FS) ?
$ echo "jefe@alm"|awk '{pos = index($0, "@");printf ("USER: %s\n",substr ($0,1,pos-1))}'
USER: jefe
Thx in advance (2 Replies)
Discussion started by: Klashxx
2 Replies
3. UNIX for Dummies Questions & Answers
Hi,
My input file is
41;2;xxxx;yyyyy....
41;2;xxxx;yyyyy....
41;2;xxxx;yyyyy....
..
..
I need to change the second field value from 2 to 1. i.e.,
41;1;xxxx;yyyyy....
41;1;xxxx;yyyyy....
41;1;xxxx;yyyyy....
..
..
Thanks in advance. (9 Replies)
Discussion started by: deepakwins
9 Replies
4. Shell Programming and Scripting
Hi,
I have a long string like,
aabab|bcbcbcbbc|defgh|paswd123 dedededede|efef|ghijklmn|paswd234 ghghghghgh|ijijii|klllkkk|paswd345 lmlmlmmm|nononononn|opopopopp|paswd456
This string is devided into one space between substrings. This substrings are,
aabab|bcbcbcbbc|defgh|paswd123... (6 Replies)
Discussion started by: syamkp
6 Replies
5. Shell Programming and Scripting
I'm writing a shell script in which I need to be able to pull a portion of the file name out. I'm testing with the following code:
x="O1164885.DAT"
y=`ls -ltr *${x}|awk '{print substr($0,3)}'`
echo ${x}|awk '{print substr($0,3)}'
echo "y="$y
I can echo it to the screen just fine but I... (3 Replies)
Discussion started by: ttunell
3 Replies
6. UNIX for Dummies Questions & Answers
can anybody explain this code?
thanks in advance..:) (6 Replies)
Discussion started by: janani_kalyan
6 Replies
7. Shell Programming and Scripting
Hi All,
I have a fixed-width datafile from which i need to extract value/string starting from some position to the specified length in each of the lines.
awk '{print substr($0,x,y)}' datafile --- is working fine
but
awk 'BEGIN{a=0}{a=substr($0,x,y);print $a}' datafile ---is giving... (3 Replies)
Discussion started by: loggedin.ksh
3 Replies
8. Shell Programming and Scripting
I have a command like this:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES" else if (substr ($0,37,1)==0 && NR == 3) print "NO"}'
This syntax doesn't work. But I was able to get this to work:
listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"}'
... (4 Replies)
Discussion started by: newbie2010
4 Replies
9. UNIX for Dummies Questions & Answers
awk '/^>/{id=$0;next}length>=7 { print id, "\n"$0}' Test.txt
Can I use substr to achieve the same task?
Thanks! (8 Replies)
Discussion started by: Xterra
8 Replies
10. Shell Programming and Scripting
Hello All;
I have an input file 'abc.txt' with below text:
512345977,213458,100021
512345978,213454,100031
512345979,213452,100051
512345980,213455,100061
512345981,213456,100071
512345982,213456,100091
512345983,213457,100041
512345984,213451,100011
I need to paste the first field... (10 Replies)
Discussion started by: mystition
10 Replies
LEARN ABOUT FREEBSD
atf-sh
ATF-SH(1) BSD General Commands Manual ATF-SH(1)
NAME
atf-sh [-s shell] -- interpreter for shell-based test programs
SYNOPSIS
atf-sh script
DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library.
atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter-
preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not
use any non-standard extensions.
The following options are available:
-s shell Specifies the shell to use instead of the value provided by ATF_SHELL.
ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes.
ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes.
ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a
specific interpreter.
EXAMPLES
Scripts using atf-sh(3) should start with:
#! /usr/bin/env atf-sh
Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode
the path to atf-sh in the script and then use the -s option afterwards as a single parameter:
#! /path/to/bin/atf-sh -s/bin/bash
ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts.
SEE ALSO
atf-sh(3)
BSD
September 27, 2014 BSD