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UNIX for Beginners Questions & Answers
Numbers bash script
Post 303044024 by vbe on Wednesday 12th of February 2020 04:03:26 PM
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Hi,
I've been trying to replace the numbers in the first column of my text file with all ones, unless the number is equal to 8. I have this:
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Hi,
I have lines in some files that look exactly as below, and the line numbers they occur in are always the same. (Lines 136-139)
W 0.00000000 0.00000000 2.00000000
W 0.50000000 0.50000000 2.50000000
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Hi,
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File one (f1.txt) is laid out like this
PCode Lon Lat
AB10 1AA 57.148235 -2.096648
BB2 3JD 53.728563 -2.47852
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Hello everyone,
I need your assistance with bash.
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Hi,
id like to know how i do this :
if i have 2 different numbers:
so ok bash knows B is bigger then A but i like to know in how much ?
how can i calculate ?
how can i know what is their difference ?
like the way you know between 10 and 2 the difference is 8
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LEARN ABOUT OSF1
sys_attrs_vme_vba
vb(7) Miscellaneous Information Manual vb(7) NAME
vb, sys_attrs_vme_vba - VMEbus backplane Ethernet interface SYNOPSIS
controller vb0 at vba0 DESCRIPTION
The VMEbus backplane (vb) interface provides access to an Ethernet network through the VMEbus backplane driver, which acts as an Ethernet Datalink Layer driver. This interface allows VMEbus-based systems to communicate directly over the VMEbus to other VMEbus-based systems on the same backplane, or on other Ethernet connected systems outside the backplane through a gateway node on the backplane. Both the Tru64 UNIX and VxWorks for Alpha (Version 3.1 or higher) software support the vb driver as well as communication between these systems on the same backplane. The Tru64 UNIX vb driver is supported on AXPvme and Alpha VME SBCs and Alpha VME 2100 systems. The VMEbus backplane interface requires you to modify the /etc/sysconfigtab file on your AXPvme or Alpha VME system in order to configure the vb driver and to map VMEbus windows for the system. Mapping the VMEbus windows on one node requires knowledge about every node in the vb network. Note Do not modify any vme_vba kernel subsystem attributes. To configure a vb network node, you modify attributes of the vb driver (vb:) and the system's VMEbus adapter (vba_vipvic: or vba_univ:). See System Configuration Supplement: OEM Platforms for detailed information about the use of the vb interface on Alpha VME systems, includ- ing the following topics: VMEbus backplane (vb) network overview Configuring vb network nodes Modifying vb driver attributes Modifying vba_vipvic adapter attributes Modifying vba_univ adapter attributes Examples Related ioctl commands Diagnostic messages Errors RELATED INFORMATION
Interfaces: sys_attrs_vba_vipvic(7), sys_attrs_vba_univ(7), sysconfigdb(8) Network Administration, System Configuration Supplement: OEM Platforms delim off vb(7)