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jzhardy
Active User
Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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I’m trying to apply some checks against a PDS member in OMVS using regex pattern matching, such as:
cat "//'<some pds member>'" | egrep -n '^abc'
problem is that the tokens ^ and $ seem to be ignored ..
any help appreciated |
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Joerg.Findeisen
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Joined: 15 Aug 2015
Posts: 1371
Location: Bamberg, Germany
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The egrep utility is fully supported for compatibility with older UNIX
systems. However, use grep -E instead because it may provide greater
functionality and is considered the standard for portable UNIX applications
as defined by POSIX.2 IEEE standard 1003.2-1992. |
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jzhardy
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Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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same issue - it makes no difference.
I've also tried copying the file into my user directory and using:
cat <file> | grep -E '^abc' |
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jzhardy
Active User
Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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| i think it must be a code page issue- i'll investigate further |
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jzhardy
Active User
Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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Root cause is that z/OS UNIX files use IBM-1047, MVS use IBM-037 as default.
this formulation works :
cat <file> | grep -E '¬abc' |
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Joerg.Findeisen
Senior Member
Joined: 15 Aug 2015
Posts: 1371
Location: Bamberg, Germany
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| Your terminal emulation should be able to switch between different CPs. Otherwise I recommend accessing OMVS via a telnet client like PuTTY (or KiTTY). |
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jzhardy
Active User
Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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what I still can't figure out is why the following in OMVS:
echo 'abcd\nefgh' | grep -E 'ab.*\nef'
returns empty |
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Joerg.Findeisen
Senior Member
Joined: 15 Aug 2015
Posts: 1371
Location: Bamberg, Germany
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You try to grep a Multiline. Better use awk or sed in such cases.
| Code: |
| echo 'abcd\nefgh' | sed -n '/ab.*/,/ef/p;' |
Output:
| Code: |
+ echo abcd\nefgh
+ sed -n /ab.*/,/ef/p;
abcd
efgh |
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jzhardy
Active User
Joined: 31 Oct 2006
Posts: 141
Location: brisbane
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| excellent! thanks |
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Joerg.Findeisen
Senior Member
Joined: 15 Aug 2015
Posts: 1371
Location: Bamberg, Germany
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| A bit care is needed as the expression means /Start expression/ and /End expression/. Everything in between should be printed IIRC. |
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