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Summary: wiki syntax fixes
Changed:
< === _Failure_
< If a [failure] occurs during the [getline] operation, the special variable [ERRNO] should becomes set and the [awk] script should [abort] with a [fatal] error. However, some versions of [awk] do not [abort] following the [failure] of [getline].
to
> === Failure ===
> If a [[failure]] occurs during the [[getline]] operation, the special variable [[ERRNO]] should becomes set and the [[awk]] script should [[abort]] with a [[fatal]] error. However, some versions of [[awk]] do not [[abort]] following the [[failure]] of [[getline]].
Changed:
< The getline function does not have a corresponding '''putline''' function. In [[awk]], output to a specific file is achieved by using [redirection].
to
> The getline function does not have a corresponding '''putline''' function. In [[awk]], output to a specific file is achieved by using [[redirection]].
The *getline* command can obtain input from any number of files and does not require a command line parameter to be provided for the [filename]. The following summarises six variants of getline applications, listing which variables are set by each one:
| *Variant* | *Variables Set* |
| getline | $0, ${1...NF}, NF, FNR, NR, FILENAME |
| getline foobar | foobar, FNR, NR, FILENAME |
| getline < foobar.txt | $0, ${1...NF}, NF |
| getline foobar < foobar.txt | foobar |
foo | getline | $0, ${1...NF}, NF |
foo | getline foobar | foobar |
If a [[failure?]] occurs during the getline operation, the special variable [[ERRNO?]] should becomes set and the awk script should [[abort?]] with a [[fatal?]] error. However, some versions of awk do not [[abort?]] following the [[failure?]] of getline.
The getline function does not have a corresponding '''putline''' function. In awk, output to a specific file is achieved by using redirection.
