Manpages Index of /git/utils-std/

arch — print architecture name (same as uname -m)
```
arch
```
base64 — encode/decode base64 data to standard output
```
base64 [-d] [-w wrap] [file...]
```

basename — print last path component of a path

basename [-z] [path] [suffix]
basename [-az] [-s suffix] [path...]

cat — concatenate files
```
cat [-u] [file...]
```
chmod — Change files modes
```
chmod [-cRv] mode file...
```

chown — Change files ownership

chown [-v] [-h | -R [-HLP]] owner[:group] file...
chgrp [-v] [-h | -R [-HLP]] group file...

chroot — run in another root directory
```
chroot newroot [command [argument...]]
```
cksum — write file checksums and sizes
```
cksum [file...]
```
cmp — compare two files
```
cmp [-ls] [-n max_bytes] file1 file2
```

cut — cut each line with selected characters/fields

cut -b list [-n] [file...]
cut -c list [file...]
cut -f list [-d delim] [-s] [file...]

date — display date and time

date [-jRu] [-d datetime | -r epoch] [+format]
date [-jRu] mmddHHMM[[CC]yy] [+format]
date [-jRu] -f now_format now [+format]

df — display mounted filesystems usage

df [-ahilPkT] [-t mnt_type] [-x mnt_type] [file...]

dirname — return the parent directory of a file pathname
```
dirname string
```
echo — write arguments to standard output
```
echo [-n] [string...]
```

env — control and print environment

env [-i] [-u name] [name=value] [command [argument...]]
env [-i] [-u name] [name=value] -S command_string

expr — evaluate expression
```
expr [-e] expression
```
false — do nothing, unsuccessfully
```
false
```

head — print first part of files

head [-qvz] [-c size | -n num | -num] [file...]

id — return user identity
```
id [-Ggu] [-nr] [user]
```

install — install binaries

install [-CcDpTv] [-g group] [-m mode] [-o owner] source... destination
install [-CcDpTv] [-g group] [-m mode] [-o owner] -t destination source...
install -d [-cv] [-g group] [-m mode] [-o owner] directory...

join — relational database operator

join [-a file_number | -v file_number] [-e string] [-o list] [-t char]
     [-1 field] [-2 field] file1 file2

link — link one file to another file
```
link reference destination
```

ln — create hard links and symbolic links

ln [-fnv] [-L|-P] source... target
ln -s [-fn] reference... target

logname — print user's login name
```
logname
```
mkdir — make directories
```
mkdir [-pv] [-m mode] dir...
```
mkfifo — Create FIFO special files
```
mkfifo [-m mode] file...
```

mknod — Create FIFO, block-special, character-special files

mknod [-m mode] path b|c|u major minor
mknod [-m mode] path p

mktemp — make a new randomly-named file or directory
```
mktemp [-dqtu] [-p tempdir] [template]
```

mv — move and rename files

mv [-f|-i|-n] [-v] source destfile
mv [-f|-i|-n] [-v] source... destdir
mv [-f|-i|-n] [-v] -t destdir source...

nice — invoke command with modified nice scheduling value
```
nice [-n increment] command [argument...]
```
nohup — run command with hangups ignored
```
nohup command [argument...]
```
nproc — print the number of processors
```
nproc [-a]
```
paste — merge corresponding or subsequent lines of files
```
paste [-sz] [-d list] [file...]
```
pathchk — check pathname validity
```
pathchk [-pP] pathname...
```
printf — formatted output
```
printf format [argument...]
```
pwd — print working directory
```
pwd [-L|-P]
```
readlink — print content of a symbolic link
```
readlink [-f|-e] [-n|-z] path
```
realpath — print resolved path
```
realpath [-E|-e] [-n|-z] [-s] path...
```

renice — modify scheduling priority of running processes

renice [-p] -n adj PID...
renice -g -n adj PGID...
renice -u -n adj UID...

rm — remove files and directories
```
rm [-dfirRv] [file...]
```

rmdir — remove directories

rmdir [-pv] [--ignore-fail-on-non-empty] directory...

seq — print a sequence of numbers

seq [-w] [-s separator] [-t terminator] [first [step]] last

sha1sum — write and verify sha1 checksums
```
sha1sum [-c] [file...]
```
sha256sum — write and verify sha256 checksums
```
sha256sum [-c] [file...]
```
sha512sum — write and verify sha512 checksums
```
sha512sum [-c] [file...]
```

shuf — print contents shuffled

shuf [-z] [-n num] [file...]
shuf -e [-z] [-n num] [string...]

sleep — delay for a specified amount of time
```
sleep duration...
```

split — split a file into chunks

split [-b size | -l lines] [-a suffix_length] [file] [name]

strings — find printable strings

strings [-az] [-t format] [-n number] [file...]

sync — Schedule file system updates
```
sync [-df] [file...]
```
tee — duplicate standard input
```
tee [-a] [-i] [file...]
```
test — condition evaluation utility
```
test expression
[ expression ]
```
time — measure time used by a command
```
time [-p|-v] command [argument...]
```

timeout — run a command with a time limit

timeout [-fp] [-k duration] [-s SIGNAL] duration command [argument...]

touch — change file access and modification times

touch [-acfhm] [-d isotime | -t datetime | -r ref_file] file...

tr — translate characters

tr [-Ccs] string1 string2
tr [-Cc] -d string1
tr [-Cc] -s string1
tr [-Cc] -ds string1 string2

true — do nothing, successfully
```
true
```

truncate — change the size of files

truncate [-c] -r ref_file file...
truncate [-c] -s [+|-|%|/]size[suffix] file...

tty — return pathname of current terminal
```
tty
```
uname — return system name and information
```
uname [-amnrsv]
```

uniq — report or filter out duplicated lines

uniq [-c|-d|-u] [-f field_shift] [-s byte_shift] [input_file [output_file]]

unlink — unlink filenames and possibly the referred files
```
unlink [file...]
```
wc — Count lines, words, bytes/characters
```
wc [-c|-m] [-lw] [file...]
```
which — locate executable within PATH
```
which [-as] name...
```
whoami — return username
```
whoami
```
yes — output a string repeatedly
```
yes [string...]
```