Hi, I'm a newbie to sed and I'm having trouble working with sed and fields.
Suppose I have a text file with:
AAA RFG:$2.10:6:25Oct06
WDD GGTR:$3.50:5:25Oct06
ADDSJ OO:$1.37:3:26Oct07
UGBDN S:$4.73:1:27Oct06
USY ADC:$2.38:20:27Oct06
And I want to substitute field 2 of line 3 with, say,... (3 Replies)
I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want.
The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
Hi,
I am having a user.txt contains the name of users and passwd.txt file contains as passwd.txt
$cat usr.txt
root
bin
daemon
cap
$cat passwd.txt
root:x:0:0:root:/root:/usr/bin/ksh
bin:x:1:1:bin:/bin:/sbin/csh
daemon:x:2:2:daemon:/sbin:/usr/bin/ksh
adm:x:3:4:adm:/var/adm:/sbin/nologin... (4 Replies)
hey i want to over write the fourth field of a ':' delimited file by first finding the required row by using grep.
i have done the following
cat file | grep no. | awk -F ':' { $4=count; print $1:$2:$3:$4;}
the correct values are being printed but nothin is bein added to the file..please... (5 Replies)
Hey guys,
I'm trying to learn a bit of awk/sed and I'm using different sites to learn it from, and i think I'm starting to get confused (doesn't take much!).
Anyway, say I have a csv file which has something along the lines of the following in it:"test","127.0.0.1","startup... (6 Replies)
Hi ,
I have a query like
select err_qty,drop_qty,unbld_qty,orig_qty from usage_data;
I need to store the values of these fetched fields in variables,
Need to edit them and update the new values into the table.
Can anyone please help me in writing this piece of code:( (1 Reply)
Hi All,
I am looking for an awk script to do the following
Join the fields together only if the first 4 fields are same.
Can it be done with join function in awk??
a,b,c,d,8,,,
a,b,c,d,,7,,
a,b,c,d,,,9,
a,b,p,e,8,,,
a.b,p,e,,9,,
a,b,p,z,,,,9
a,b,p,z,,8,,
desired output:
... (1 Reply)
Hi experts,
I need to print the first field first then last two fields should come next and then i need to print rest of the fields.
Input :
a1,abc,jsd,fhf,fkk,b1,b2
a2,acb,dfg,ghj,b3,c4
a3,djf,wdjg,fkg,dff,ggk,d4,d5
Expected output:
a1,b1,b2,abc,jsd,fhf,fkk... (6 Replies)
I'm trying to compare 2 files for differences in a selct number of fields. When differnces are found it will write the whole record of the second file including appending '|C' out to a delta file. Each record will have 20 fields, but only want to do comparison of 1st 15 fields. The 1st field of... (7 Replies)
Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields.
I tried this and it doesn't sort on the difference field .. Appreciate your help.
cat... (9 Replies)
Discussion started by: newstart
9 Replies
LEARN ABOUT LINUX
shtool-subst
SHTOOL-SUBST.TMP(1) GNU Portable Shell Tool SHTOOL-SUBST.TMP(1)NAME
shtool-subst - GNU shtool sed(1) substitution operations
SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
[-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]
DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-n, --nop
No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.
-w, --warning
Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
operations resulted in no content change on all files.
-q, --quiet
Suppress warning on substitution operation resulting in no content change.
-s, --stealth
Stealth operation. Preserve timestamp on file.
-i, --interactive
Enter interactive mode where the user has to approve each operation.
-b, --backup ext
Preserve backup of original file using file name extension ext. Default is to overwrite the original file.
-e, --exec cmd
Specify sed(1) command directly.
-f, --file cmd-file
Read sed(1) command from file.
EXAMPLE
# shell script
shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]
# RPM spec-file
%install
shtool subst -v -n
-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g'
-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g'
`find . -name Makefile -print`
make install
HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted
by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.
SEE ALSO shtool(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)