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gnucobol-mainframe-batch

GnuCOBOL toolchain pointers for mainframe-style batch programs (LINE/RECORD SEQUENTIAL files, PIC clauses, cobc build flags).

tasks-extra/cobol-gl-batch-reconcile/environment/skills/gnucobol-mainframe-batch/SKILL.md

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Nov 4, 2026
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Apache-2.0

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# GnuCOBOL mainframe batch

## Compile and run

```bash
cobc -x -free -o prog PROG.cbl
./prog
```

`-free` allows `*>` comments and free-form source. File names in `SELECT`
are resolved relative to the program's run directory.

```cobol
SELECT DETAIL-FILE ASSIGN TO "TRAN.DAT"