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Shell utilities

The following commands are available from the OMVS shell:

man
help on command use. For example, man chmod will show the manual information for the chmod command. man extracts this information from the BookManager books for Unix System Services.
grep
find text strings in files. For example, grep -i "string" * will scan all files in the current directory for the specified string. The -i means that the search is case-insensitive.
find
finds files with specified attributes.
diff
find differences between files or directories. diff -s dir1/ dir2/ will compare files in two directories for differences. It identifies files which are only found in one of the two directories.
chmod
change file permission bits. You can also invoke this command from ftp using quote site chmod ... for a single file.
chown
change file owner. This changes the owning uid and/or gid.
mv
move or rename one or more files/ directories.
tso
run a TSO command. Behaviour may vary depending on how you entered the shell environment.
iconv
converts from one character set to another.
nm
displays the symbol table from an executable file.
od
"Octal Dump". Also does hexadecimal dumps.
wall
sends a message to all logged in users.
whence
identifies the location of an executable file.
who
display information about logged in users.
ps
display information about active processes.
strings
show printable text from a file (even an executable).
lp
direct output to spool. See Spooling output from OMVS processes for more information.

I recently made use of the following command:

tr -cs "[:alpha:]" "\n*" <input.file | grep "string"
which scans input.file for words containing string, even if input.file is binary.

Here is another way to do this:

strings input.file | grep "string"

See Taking advantage of the OMVS shell for more information about shell commands.

You can also find information on the web at Functions and Commands for z/OS Unix System Services.
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